Frequently asked questions

Drop or paste a photo. Choose Solid, Polaroid, or Shadow. Set the width, then download under Preview.

Yes. The frame sits outside the photo, so the canvas grows. Width is a percent of the short side, so the same setting fits mixed sizes in a batch.

Solid uses the color you pick. Polaroid keeps a thicker white margin along the bottom. Shadow sits on a light mat so the shade stays visible.

This page does not type on the frame. Open Add Text for one line, or Watermark for a logo or a tiled mark.

No. The frame is drawn in your browser. The download is PNG. If HEIC will not open, convert with HEIC to JPG first.

No. Watermarking runs in the browser. Your images are not uploaded for processing. If you pick a Google Font, the browser may fetch that font from Google. That download is the font, not your photo.

Yes. Drop a set of photos, or paste on an empty queue. Build the mark once, then download every included image as a ZIP.

Single, Diagonal, and Tiled. Drag a tiled logo to shift the pattern. Single and Diagonal place one mark.

JPG, PNG, WebP, HEIC, AVIF, and GIF are accepted. Export format is Original, JPEG, PNG, WebP, or GIF. Quality applies to JPEG and WebP. GIF export is one still frame.

Existing metadata stays unless you turn on Embed as metadata. That option adds a copyright tag on top of the photo metadata. It does not strip GPS. Use Remove EXIF Data for that.

Yes. Add a text layer and a logo layer, then style each one.

Use solid black when the secret must stay hidden. Strong pixelate is the next choice. Soft Gaussian looks natural, but research tools can sometimes reverse it. Prefer black for faces, plates, IDs, and addresses.

No. Soft Gaussian can be reversed with research tools. It is not a permanent redaction. Use solid black when the detail must stay hidden.

No. Blur runs in your browser. Your photo is not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

Yes, when this browser can read HEIC. If it cannot, convert with HEIC to JPG first, then blur the JPG here. GIF uses the first frame.

Yes. Add a batch, draw on each photo, and download one file or a ZIP of every included photo.

Blur hides pixels. JPG, PNG, and WebP downloads can still carry GPS and other camera tags. The warning sits at the top of Preview. Remove EXIF Data opens with this photo already loaded.

No. Compression runs in your browser with on-device codecs. Your photo files are not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

Quality applies High, Med, or Low. Fine quality appears in Quality mode under More options and overrides the preset from 40 to 95. Target size aims under a KB budget. Chips are 100 KB, 200 KB, and 500 KB, or you can type a size. Large photos may be resized to hit it. Look the same uses Strict, Balanced, or Loose. The file may stay larger.

JPG, PNG, WebP, HEIC, and AVIF. You can keep the original format or switch output under More options. AVIF encode depends on browser support.

PNG is lossless. Quality presets have limited effect on PNG file size. Try JPEG, WebP, or AVIF under More options, or use Target size.

JPG, PNG, and WebP downloads can still carry location and camera tags. HEIC and AVIF do not keep those tags in the new file. Use Remove EXIF Data when you want them gone.

Yes. Add a set and keep the ones you want. Download every included photo as a ZIP. Device memory sets the practical limit.

No. The card says estimated sizes. Actual output may differ. Drag the compare handle before you download. Turn the magnifier on to inspect one spot.

No. Crop runs in your browser. Your photo is not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

Drop or paste a photo. Drag the frame, pick a ratio, or type an exact width and height. Press Crop Image, then download under Preview. Everything stays in your browser.

Yes. Enter width and height, then press Use this size. You can also type X, Y, width, and height, or drag the handles. Arrow keys nudge the frame.

Press 1:1. The frame stays square while you drag. 4:5, 9:16, and 1.91:1 are there for social frames. Circle crop is a separate tool.

Free, 1:1, 4:3, 16:9, 3:2, 4:5, 9:16, and 1.91:1. Turn the thirds grid on or off. Apply to all copies the crop frame, ratio, and straighten across the batch.

Yes. The slider turns the cropped photo from 45 degrees left to 45 degrees right on download. The frame on screen stays upright while you drag.

JPG, PNG, and WebP downloads can still carry location and camera tags. HEIC, GIF, and AVIF do not keep those tags in the new file. The warning sits at the top of Preview. Remove EXIF Data opens with this photo already loaded. GIF uses the first frame.

Choose 3, 5, or 8 swatches. They appear when the photo is ready. There is no separate extract button.

Yes. Copy HEX, RGB, or HSL for the selected swatch. Copy CSS variables writes the whole set.

No. Colors are read in your browser. Files never leave your device.

No. Inspecting a photo does not rewrite it. Remove EXIF can open with this file already loaded.

Drop or paste a photo and choose Horizontal. The preview updates as you toggle. Download under Preview.

Flip mirrors left to right or top to bottom. Rotate turns the photo by an angle. This page stays the flip landing. Open Rotate Image for 90° steps and custom angles. Both tools share the same engine.

Yes. Choose Both, or turn on Horizontal and Vertical together. Mirroring both axes matches a 180° turn. Reset clears the mirrors.

A left to right flip is the usual selfie mirror. Check the preview before you download. There is no cloud face finder.

Yes. Add several photos and download every included file as a ZIP. The same mirror applies to each one.

No. The download is a new image file. The pixels are resampled. It is not a byte-for-byte copy. JPG, PNG, and WebP can still carry location tags.

No. Flip runs in your browser. Your photo is not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

JPG, PNG, WebP, HEIC, GIF, and AVIF are accepted. GIF uses the first frame. If HEIC will not open, convert with HEIC to JPG first.

Paste with Ctrl+V or drop an image. Draw an arrow, box, text, or pen mark. Copy PNG for chat, or download under Preview.

Yes. Copy writes a PNG so chat apps can paste the image. If Copy fails in your browser, use Download instead.

Download keeps JPG, PNG, or WebP when that was the source. Other types fall back to PNG. Copy is always PNG.

Open Blur Image. This page stays on marks. It does not pack a soft-blur editor.

No. Markup stays in your browser. Nothing is uploaded.

No. Inference runs in your browser. Your image file is not uploaded for processing. On first use the page may download a model (and related runtime) from a CDN. That download is the model, not your photo.

No. It is an on-device cutout / segmentation model loaded into this browser (CDN fetch on first use, including a larger Best model the first time you pick Best). Inference runs locally. It is not a server-side model and not an upload of your image.

After the auto cutout, use Keep to paint areas back into the subject. Use Erase to remove leftover background. Zoom in for edges and hair. Compare pauses while you refine so strokes stay accurate.

These are cutout quality presets. Balanced is the default. Best downloads a larger model, about 168 MB, the first time you use it. Change quality, then press Retry on this image. Changing quality does not run again by itself.

Intake includes JPG, PNG, WebP, HEIC, and AVIF. Background choices are Transparent, White, Color, and Image. Image uses your own fill photo from this device. It is not a stock library. PNG and WebP keep a clear background. JPG appears only when the background is filled.

Yes. Drop several images, or paste on an empty queue. Refine the ones that need it. Download All packs every included file as a ZIP. The ZIP uses the format you picked, not PNG only.

A clear subject on a simple background works best. Hair, glass, and busy scenes may need Keep or Erase. Use Best, then Retry, for hard edges. Your photo stays on this device.

No. Resize runs in your browser. Your image is not uploaded to a NixRey server. This tool does not download a model. Bundled resizer math is runtime code, not your photo leaving the device.

Fit shows the whole image. Empty edges may remain. Fill meets the exact size and may crop. Stretch forces both edges and may distort. A portal preset locks Fit to Fill until you clear it. Aspect lock keeps width and height in proportion when you type one side.

Yes. Drop several images, or paste on an empty queue. The same size or preset applies. Download All packs every included photo as a ZIP. Device memory sets the practical limit.

Passport and ID presets include India and government sizes. Social presets cover common post sizes. Those portal presets export JPEG and try to stay under the portal max. Presets that include a pixel size also set width and height. Social presets use Fill and clear Target KB. Social presets and portal presets do not stack. There is no Quality High, Med, or Low control.

Intake is JPG, PNG, WebP, HEIC, and AVIF. Export is Same, JPEG, PNG, or WebP. A portal preset locks export to JPEG. Same, PNG, and WebP stay off until you clear that preset.

JPG, PNG, and WebP downloads can still carry location and camera tags. HEIC and AVIF do not keep those tags in the new file. If the warning appears, open Remove EXIF Data before you post.

Many phones store Orientation in the photo file. Some email apps ignore that tag and show the raw pixels sideways. Rotate Image bakes the upright pixels so every viewer sees the photo the right way up.

Expand is the default. It keeps the whole photo and fills the new corners with white, black, or transparent. Transparent corners save as PNG. Fit crops back to the original frame.

Yes. Flip Image is a separate page for mirrors only. It uses the same engine. Open it for left to right, top to bottom, or both, with no angle slider.

Yes, when this browser can read HEIC. If it cannot, convert with HEIC to JPG first, then rotate the JPG here. GIF uses the first frame.

Yes. Add a batch, set one angle and flip, then download one file or a ZIP of every included photo.

No. The download is a new image file. A free angle resamples the pixels. Even a 90° turn is not a byte-for-byte copy of the original.

No. Rotate runs in your browser. Your photo is not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

No. JPG, PNG, and WebP downloads can still carry location and camera tags. The warning sits at the top of Preview. Remove EXIF Data opens with this photo already loaded. HEIC, GIF, and AVIF do not keep those tags in the new file.

Paste your Base64 string into the text area. If it includes a data URI prefix (data:image/...;base64,), the format is auto-detected. Click Download to save the image.

Paste the raw Base64 string and select the correct output format (PNG, JPG, or WebP) from the format selector. The tool will decode it correctly.

Any Base64-encoded image: PNG, JPG, WebP, GIF, SVG, and others. The format is detected from the data URI prefix or set manually.

Yes: a live preview updates as you paste or type the Base64 string, so you can verify the image is correct before downloading.

No. HEIC→JPG on NixRey runs in your browser. A first visit may download a HEIC decoder / runtime for local decode. That is the decoder, not your image. See Convert HEIC to JPG for the full path.

No. Convert Image runs in your browser. Your photo files are not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image. There is no account and no cloud convert.

The photo is decoded once. JPG, WebP, and AVIF then encode at the quality you pick. There is no hidden JPEG before that.

Yes. Choose AVIF under Output format. It is lossy, with High, Medium, and Low.

Yes. Add a batch and leave the ones you want checked. Press Convert included. Download All ZIP packs those files.

JPG, PNG, and WebP downloads can still carry location and camera tags. HEIC, GIF, and AVIF do not keep those tags in the new file. If GPS is present, a warning sits at the top of Preview. Remove EXIF Data opens with the converted photo.

Yes. High, Medium, and Low use the same encode path as Compress. You see an estimated size before you download.

Not as a lossless download. HEIC to JPG is the honest path. One decode, then JPG at the quality you pick.

Upload your GIF file and the first frame is extracted automatically. Choose PNG (lossless) or JPG (smaller file), then download.

This tool extracts the first frame only. If you need individual frames, you would need a dedicated GIF frame extractor tool.

PNG is lossless and supports transparency, so best for GIFs with transparent backgrounds. JPG produces smaller files but no transparency.

No. Decoding and encoding run in your browser. Your image file is not sent to a NixRey server. On first use the page may download a HEIC decoder / runtime so this browser can read HEIC. That download is the decoder, not your photo.

No. It is a local HEIC/HEIF reader (bundled WASM / runtime) so the browser can decode the file on your device. It is not a server-side model and not an upload of your image.

JPG is lossy. High keeps more detail. Medium and Low make smaller files and can soften fine texture.

The JPG is a fresh encode. Camera EXIF and GPS are not copied into the file. Use Remove EXIF when you want a deliberate strip. That tool also stays on your device.

Yes. Add HEIC or HEIF files and leave the ones you want checked. Press Convert, then download heic-to-jpg.zip. Start near 20 files and about 25 MB each.

HEIF uses the same intake as HEIC on this page. Other formats are skipped with a clear message.

Yes. Conversion happens in your browser. The files are not sent to NixRey servers.

No. Decoding stays on this device. There is no account.

This page writes PNG from one decode and skips a JPEG step. It is not a lossless copy of the iPhone original. Chosen quality stays on HEIC to JPG.

The PNG is a fresh encode. Camera EXIF and GPS are not copied. Use Remove EXIF when you want a deliberate strip.

Yes. Checked files export together as heic-to-png.zip. Start near 20 files and about 25 MB each.

HEIF is accepted with HEIC. Other formats are skipped with a clear message.

Base64 is a way to represent binary data (like images) as a text string. It is commonly used to embed images directly in HTML, CSS, or JSON without needing a separate file reference.

Include it when embedding in HTML (e.g. <img src="data:image/png;base64,...">). Use raw Base64 only when the receiving system expects just the encoded data without the prefix.

Any image format your browser can read: JPG, PNG, WebP, GIF, SVG, and more. The MIME type is automatically detected from the file.

Yes: Base64 encoding increases data size by about 33%. A 100KB image produces roughly 133KB of Base64 text. The character count and approximate size are shown below the output.

No. This page runs in your browser. Your photo files are not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

Drop or paste a JPG. PNG is already selected. There is no quality step. Press Convert, then download under Preview.

PNG keeps the pixels, so the file is often larger than the JPG. It does not add a clear area the JPG never had.

Yes. Add several JPG files and leave the ones you want checked. Press Convert included. Download All ZIP packs those files.

No. This page accepts JPG and writes PNG. Open Convert image for other formats.

No. This page runs in your browser. Your photo files are not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

Drop or paste a JPG. WebP is already selected. Pick High, Medium, or Low, then press Convert. Download under Preview.

WebP is often smaller than JPG at a similar look. The encode stays on this device.

Yes. Add several JPG files and leave the ones you want checked. Press Convert included. Download All ZIP packs those files.

A normal JPG has no clear area. The WebP stays opaque.

No. This page runs in your browser. Your photo files are not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

Drop or paste a PNG. JPG is already selected. Pick High, Medium, or Low, then press Convert. Download under Preview.

JPG cannot keep a clear area. Those pixels become white.

Yes. Add several PNG files and leave the ones you want checked. Press Convert included. Download All ZIP packs those files.

JPG is lossy. High keeps more detail. Medium and Low make smaller files and can soften fine texture.

No. This page runs in your browser. Your photo files are not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

Drop or paste a PNG. WebP is already selected. Pick High, Medium, or Low, then press Convert. Download under Preview.

Yes. WebP can keep a clear area from the PNG.

Yes. Add several PNG files and leave the ones you want checked. Press Convert included. Download All ZIP packs those files.

WebP is often smaller than PNG. The savings depend on the photo and the quality you pick.

Upload your SVG file, choose your output format (PNG or JPG) and scale multiplier, then download the converted image.

1x (native size), 2x, 3x, and 4x for high-resolution output. Use 2x or higher for sharp results on retina displays or when printing.

Yes: enter a custom width and the height is automatically calculated to maintain aspect ratio.

SVGs that reference external fonts, images, or URLs may not convert correctly since those resources are not available during conversion. Self-contained SVGs convert perfectly.

No. This page runs in your browser. Your photo files are not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

Drop or paste a WebP. JPG is already selected. Pick High, Medium, or Low, then press Convert. Download under Preview.

JPG cannot keep a clear area. Those pixels become white.

Yes. Add several WebP files and leave the ones you want checked. Press Convert included. Download All ZIP packs those files.

Use it when a form, mail app, or older program will not open WebP. Mixed formats stay on Convert image.

No. This page runs in your browser. Your photo files are not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image.

Drop or paste a WebP. PNG is already selected. There is no quality step. Press Convert, then download under Preview.

PNG can keep a clear area from the WebP. Use it when you need a file more editors open. The file is often larger than the WebP.

Yes. Add several WebP files and leave the ones you want checked. Press Convert included. Download All ZIP packs those files.

PNG is often larger than WebP for the same pixels. There is no quality step on this page.

Brightness lifts or darkens the whole photo. Contrast stretches lights and darks so the image looks punchier or flatter. Saturation boosts or mutes color strength. Each slider runs from -100 to +100 with Low, Balanced, and High presets.

Set Brightness and Contrast first. Then move Saturation. Color is easier to judge after the light looks right.

No. JPG, PNG, and WebP downloads can still carry location and camera tags. The warning sits at the top of Preview. Remove EXIF Data opens with this photo already loaded. HEIC, GIF, and AVIF do not keep those tags in the new file.

Yes. HEIC is accepted. If this browser cannot read the file, convert it with HEIC to JPG first. The photo stays on this device.

Yes. Add several photos. The same sliders apply to every included photo. Download All ZIP packs them together.

No. Adjustments run in your browser. Your photo is not sent to a NixRey server. The page may load normal app/runtime code like any website. That is app/runtime code, not an upload of your image. There is no cloud AI enhance.

Drop or paste a photo and click the pixel you want. HEX, RGB, and HSL appear with copy buttons.

HEX, RGB, and HSL. Each value has its own copy button.

Yes. The last 10 samples stay as swatches. Click a swatch to restore that color.

The loupe magnifies the pixels under your pointer so you can click the exact spot.

Drop or paste a photo, leave Grayscale selected, and set intensity. Download under Preview. Sepia lives on its own page.

Grayscale keeps a range of gray tones. Black and White uses a threshold. Each pixel becomes pure black or pure white.

In Black and White, pixels brighter than the threshold become white. Darker pixels become black.

Yes. Add several photos. The same setting applies to every included photo. Download All ZIP packs them.

No. The filter runs in your browser. Nothing is uploaded. There is no cloud AI enhance.

It makes a negative. White becomes black. Red moves toward cyan. Intensity blends that result back toward the original.

Yes. Turn R, G, or B off. Only the checked channels invert.

Yes. Add several photos. Download All ZIP packs every included file with the same invert.

No. The invert runs in your browser. Nothing is uploaded.

Drop or paste a photo. Choose Slight, Medium, Heavy, or Circle, or set the radius. Download under Preview. A batch can leave as a ZIP.

Yes. The download is PNG, so the outside of each corner stays clear. JPEG cannot keep that clear area.

Circle sets the radius to half the short side. A square becomes a disc of the whole frame. A wide photo becomes a pill. It does not punch a smaller circle you can drag. That is Circle Crop.

Yes. Switch to Corners and set each corner as a percent of the short side. Squircle is a softer app-icon curve on the full frame.

No. Rounding runs in your browser. If HEIC will not open, convert with HEIC to JPG first. GIF uses the first frame.

Sepia shifts a photo toward warm brown, like an old print. Intensity blends that look with the original.

Sepia, Warm, Cool, Faded, and Vintage. Each one is a named tone on this page.

Yes. 0 keeps the original. 100 applies the full tone. The preview updates as you drag.

No. The tone runs in your browser. Nothing is uploaded.

A real multi-resolution icon container. The usual contents are 16, 32, and 48. Those are the classic Windows favicon sizes.

One PNG per checked size. The file name matches the pixel size. This is not an .ico file that was renamed.

Cover fills each square from the center. Contain keeps the whole mark inside the square and leaves the spare area clear.

Yes. Uncheck it. The preview and the PNG ZIP follow the sizes that stay on. The .ico still embeds only 16, 32, and 48 when those stay on.

No. Resizing stays in your browser. Files never leave this device.

The new icon files do not copy camera location tags. The source photo can still hold GPS. Remove EXIF opens with that photo loaded.

Drop a base photo and an overlay. Set opacity, blend, a 3 by 3 position, and scale. Download under Preview.

Normal, Multiply, Screen, Overlay, and Soft light. Blend stays in Controls. The preview header only shows Live.

Yes. PNG and WebP keep the overlay alpha. JPEG flattens transparent pixels to white.

Yes. The picture in Preview is the file that downloads. There is no separate apply step.

No. The composite stays in your browser. Nothing is uploaded.

Drop a portrait, pick a preset, and pan the cover crop. The chin-crown guide is a local percent of the frame. Download under Preview.

Indian Passport 630×810, India e-Gov Face 420×525, PAN Protean 197×276, India Visa 600×600, US Passport 600×600, and UK Passport 413×531.

No. The guide is a fixed percent overlay. There is no cloud face detection and no face scan.

No. NixRey does not certify acceptance. Presets follow published sizes when known. Always confirm the portal you are using.

Yes. Print sheet builds a 4 by 6 page with six copies of the framed photo.

No. The QR is encoded in your browser with the qrcode library. The payload never goes to a server. There is no account.

No. You get a static image. NixRey does not count scans, rewrite the link later, or store the payload.

PNG is a bitmap at the size you picked. SVG is a vector of the same code, so it stays sharp when you print it. Both sit under Preview.

Higher correction keeps the code readable if part of it is dirty or covered. Level M fits most uses. Level H is tougher and makes a denser code.

Not on this page. A logo can hide modules, so this tool leaves the code plain. Download the PNG or SVG and compose a logo in another tool if you need one.

Open QR Code Reader. It decodes a photo or a camera frame on this device. Frames are not uploaded.

Enter the original price and the discount percentage. The tool instantly shows the discount amount, the final price after discount, and the total savings.

Yes: use the "Find original price" mode: enter the final price and the discount percentage, and the tool calculates what the original price was.

Use the "Find discount %" mode: enter the original price and the discounted price, and the tool calculates the percentage discount.

For stacked discounts, apply them one at a time: first get the price after the first discount, then use that as the original price for the second discount.

Yes: the calculator works with any currency since it operates on numeric values only. The currency symbol in the display is for illustration; results are correct regardless of currency.

No. Everything runs in your browser. Nothing is uploaded to NixRey or stored on our servers.

A print-ready PDF with correct page breaks for long invoices. It matches what you see in the live preview.

In B2B mode, choose a tax country to get the right labels (VAT, GSTIN, TRN, and so on). Filled tax IDs, place of supply, and similar fields can appear in a compact metadata area on the invoice when space allows (up to five rows). Switching country clears country-specific notes so old values do not leak into the PDF.

Yes. Your draft saves automatically to local storage on this device and browser. Reset clears the form and deletes that saved draft.

Yes, on this device only. After you download a PDF, the tool saves the client and any line items with descriptions so you can pick them from suggestions next time. This is local autocomplete, not bookkeeping or cross-device sync.

Saved suggestions live in your browser storage separately from the draft. Reset only clears the current form. To remove saved clients and items, clear site data for NixRey in your browser settings.

No. It builds and downloads invoices only. It does not track payments, balances, or recurring billing across invoices.

EMI = P × r × (1+r)^n / ((1+r)^n − 1), where P is the principal amount, r is the monthly interest rate (annual rate ÷ 12 ÷ 100), and n is the total number of monthly payments.

The amortization table shows the payment breakdown for each month: how much goes toward principal, how much is interest, and what the remaining balance is after that payment.

Total interest is (monthly EMI × number of months) − principal amount. This shows the full cost of borrowing over the life of the loan.

Yes: enter the term in months or years. Common terms: 12 months (1 year), 60 months (5 years), 180 months (15 years), 360 months (30 years for a mortgage).

No. Receipts are built and downloaded in your browser. Nothing is uploaded to NixRey.

You get one receipt per calendar month covered by your start and end dates. A range from 15 January to 10 March produces three receipts.

No. PAN is optional. If you enter one, it must match the standard Indian PAN format and appears on each receipt.

Enter the bill amount, select a tip percentage (or enter a custom value), and the tip amount and total are calculated instantly. Adjust the number of people to split between.

10%, 15%, 18%, 20%, and 25% preset buttons are provided for common tipping conventions. You can also type any custom percentage.

The total (bill + tip) is divided equally by the number of people. The result is rounded to 2 decimal places.

The calculator works with any currency; just enter the amount in your local currency. The currency symbol is not significant to the calculation.

Use the 9-cell position picker: corners, edges, or center. Default is bottom center. Margin sets the inset from the edge. Preview updates on every thumbnail before you apply.

Four formats: 1 · Page 1 · 1 of N · - 1 -. Numbers render as Helvetica text. Size is Small · Medium · Large.

Yes. Set the first number on the rail. Later pages count up from there. The default is 1.

No. This tool numbers every page. To number part of a file, split it first on /split-pdf, then add numbers. Skipping the first page is not shipping.

No. Bates numbering is not shipping on this tool.

No. This tool numbers one PDF. A ZIP of several numbered PDFs is not shipping.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

Numbering runs in your browser. Your PDF is not uploaded to a NixRey server. The page may load app and worker code like any website. That is not your PDF upload.

Compare renders both PDFs and marks pixels that differ in red. It also diffs the text layer when one exists. It does not compare layout structure.

The text patch uses the same text-layer extract as /pdf-to-text. The page view is a separate pixel compare of the rendered pages.

Identical scans stay idle. Scans that differ show red marks on the changed pixels. There is no OCR. The text patch stays idle without a text layer.

Download patch saves pdf-text-diff.patch. The file is a unified text diff of added and removed lines. It is not a visual overlay PDF and it is not a clipboard copy.

Yes. Both PDFs stay in your browser. Compare does not upload them. There is no account.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

No. Compression runs in your browser. Your file never leaves this device. The page may load app and worker code like any website. That is not your PDF upload.

Strong re-encodes embedded images in place for smaller scanned PDFs. It does not claim full-page raster.

Yes. Drop several PDFs and pick one preset. The download is a ZIP of the compressed files.

This tool cannot process a password-protected PDF. Unlock it on PDF Password, then come back with the unlocked file.

Basic is a light shrink for files that are already optimized. Balanced keeps clear text. Max cuts size harder for email caps. Strong is for scans with embedded images.

Crop sets the visible CropBox. It does not hard-delete page content. Content outside the CropBox may remain in the file. Use /redact-pdf when you need burn-in removal.

All pages applies one CropBox to every page. Each page separately lets you draw a CropBox per page.

Usually not much. CropBox changes what viewers show. It is not Compress. For a smaller file, open /compress-pdf.

No. Crop sets the visible CropBox. Resize changes paper size on /resize-pdf. Crop does not change the page dimensions.

Not in this remint. Auto-trim stays later. Drag the CropBox yourself.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

Crop runs in your browser with pdf.js and pdf-lib. Your PDF is not uploaded to a NixRey server. Press F12 and open the network panel. The page may load app code. That is not your PDF.

Drop JPG, PNG, WebP, or HEIC. Pick A4, Letter, or Fit. Press Create PDF. Each photo becomes one page, in queue order.

Yes. Copy a photo, then press Ctrl V or Command V on this page. The photo joins the queue. Nothing is uploaded.

Yes. Drop a HEIC or HEIF photo. The first visit may download a HEIC decoder. Your photos are not uploaded. If this browser still cannot read the file, convert it with Convert HEIC, then add the JPG here.

A4 and Letter place each photo on that paper size, centered. Fit makes the PDF page match the photo after you rotate it.

Use the rotate control on that photo in the queue. Each press turns it 90 degrees. Page setup has no orientation menu.

No. The PDF is built in your browser. Your photos are not sent to a NixRey server. A first HEIC visit may download a decoder. That download is the decoder, not your photo.

Download the PDF or use Save As. Open Compress to shrink the new file on this device. You can also merge it, split it, or turn pages into images.

Add files, set page order, and merge into one PDF. Pages from every file sit in one strip. Drag to reorder, drop extras, then download.

Add the PDFs. Every page appears in one strip. Set the order, then download one file. Processing stays in your browser.

Yes. Use Add PDF on the file tray. New pages join the same strip, and you can drag them into place.

Jobs with 3000 or more pages use a file list. Preview any page, reorder whole files, then merge. Per-page drag is available under 3000 pages.

Yes. NixRey merges in your browser. Your PDFs are not uploaded to a server.

Yes. NixRey runs in a modern browser on phone, tablet, and desktop.

Upload a PDF, choose Edit, click a paragraph or image, then click Save. Annotate, Forms, Organize, and Sign are separate modes. Nothing is sent to a server.

Yes. Clicking existing text covers the original run and places a wrap box. Isolated same-line tweaks rewrite only when they cannot change columns or fonts. This is not Word. Images can be moved, resized, replaced, or deleted. Save substitutes a font when the original font cannot cover the new characters.

Forms fills fields that are already in the PDF. Add fields from the Forms bar. Cover and whiteout hide what is under them. Use Redact PDF to remove text. Sign places a visual signature image. It is not a cryptographic digital signature. Signature boxes often do not show in Chrome, Edge, or Firefox.

Yes. The PDF loads only in your tab. Saving runs locally in your browser.

Click Find. Type the words to search. The current match is highlighted like a browser find. Use Next and Previous to move. Replace is available in Edit on a large screen.

Open Edit, click Add link, then click the page to place a box. Type the web address. The box becomes a clickable link in the saved PDF.

Protect adds an open password and keeps the original pages, including text. Unlock removes the open password and keeps the original pages. We do not claim AES-128 native encrypt for Protect.

No. Do not cite AES-128 for NixRey. Protect keeps the original pages and adds an open password. Unlock removes the open password and keeps the original pages.

No. This page has no permissions controls and no no-print option. Protect sets an open password only.

We cannot recover a forgotten password. This tool does not crack or guess passwords. There is no server recovery.

Other NixRey PDF tools cannot open a password-protected file. They send you here to unlock it when you know the password. This page does not send you back to itself.

Yes. You need the correct open password and legal permission to modify the file.

Work stays in this browser. Your PDF and password are not uploaded. The page may load app and worker code like any website. That is not your PDF upload. There is no account and no server vault of passwords.

Named DPI presets match the controls. Standard is 72 DPI. High is 144 DPI. Ultra is 216 DPI. Higher DPI means sharper pages and larger files.

JPG uses Low, Medium, or High. PNG is lossless and usually larger. Quality presets show only when JPG is selected.

No. Select the pages you want. Clear removes the selection. Unselected pages stay out of the download.

Drag a page onto another to change the order. Rotate turns that page 90 degrees. The image or ZIP follows that order and rotation.

Two or more pages download as a ZIP. One selected page downloads as a single image.

No. Each selected page becomes one raster image. Photos embedded inside a page are not pulled out as separate files.

Raster runs off the main thread. The bar keeps a soft crawl when the percent pauses. Cancel stops the job. A large PDF can still take a while.

Conversion runs in your browser. Your PDF is not uploaded to a NixRey server. The page may load app and worker code like any website. That is not your PDF upload.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

Download the ZIP or the single image, or use Save As. Open Compress Image to shrink the exported images on this device. You can also open Images to PDF.

We extract the embedded text layer only. Image-only or scanned PDFs show an empty state. That emptiness is honest.

No. NixRey PDF to text never runs OCR. Use an OCR tool elsewhere if you need text from scans.

Output is plain .txt. Complex tables may flatten. Layout and fonts are not preserved.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

PDF to text runs in your browser. Your PDF is not uploaded to a NixRey server. Press F12 and open the network panel. The page may load app code. That is not your PDF.

Yes. Continue opens Compare on /compare-pdf with this file already loaded. Compare diffs the text layer of two PDFs. It does not run OCR.

No. This is visual burn-in only. It paints over regions on the original page. It is not certified secure redaction.

Yes. Black and White paint a solid rectangle on the original page. Text, fonts, and links stay in the file. Blur covers that region with a softened patch. One mark does not turn every page into a photo. This is not certified secure redaction.

Black and White fill the region solid. Blur softens the pixels under the box. Preview uses the same blur as export.

All pages paints one set of boxes on every page. Each page separately lets you draw a different set on each page.

Yes. The file you started with is unchanged, so hidden text there remains. The download keeps the original pages and paints over your regions. Text under a rectangle can remain. That is visual burn-in, not a forensic wipe of the original.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

Redact runs in your browser. Your PDF is not uploaded to a NixRey server. Press F12 and open the network panel. The page may load app code. That is not your PDF.

No. PDF Editor whiteout hides visually. This redact paints over regions on the original page. They are different jobs. Open /pdf-editor for whiteout.

No. We do not run OCR. You draw each region. This tool does not read text from the page.

No. We do not find or remove personal data automatically. This is visual burn-in only. Hidden text can remain.

No. Split extracts selected pages into a new PDF on /split-pdf. Remove deletes marked pages and keeps the rest in one thinned file.

Yes. Clear marks or Start over before you download. After download, re-open the original if you still have it.

Yes. Mark blank pages in the thumbnail grid, then remove them. This tool does not find blank pages for you.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

Bookmarks and links on kept pages usually stay. A link that pointed at a removed page can break. Check the trimmed file before you share it.

Remove runs in your browser. Your PDF is not uploaded to a NixRey server. The page may load app and worker code like any website. That is not your PDF upload.

Removing pages drops those pages from the file. It does not shrink images on the pages you keep. Open Compress at /compress-pdf when you want a smaller file.

No. Merge on /merge-pdf combines multiple PDFs into one. Reorder changes page order inside a single PDF.

No. Reorder changes page order only. It does not re-encode images or claim a quality boost.

The × drops that page from this reorder. Page order is still the job. To delete pages as the job, use Remove PDF Pages at /remove-pdf-pages.

Long PDFs keep a windowed page list. Drag the pages on screen. The rest stay in order and appear as you scroll. Reorder still takes one file.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

Reorder runs in your browser. Your PDF is not uploaded to a NixRey server. The page may load app and worker code like any website. That is not your PDF upload.

No. Resize changes page dimensions such as A4 or Letter. Compress shrinks the file size in megabytes. Use /compress-pdf when you need a smaller download.

Fit keeps proportions and scales the page into the new size. Fill crops to cover the page. Stretch fills the page and can distort text and shapes. Center places the original page on the new canvas and does not scale it up.

Fit keeps the whole page inside the new size and may leave margins. Fill crops to cover the page. Stretch fills the page and can distort. Center does not scale. A larger original page can sit past the edge of a smaller target.

Custom width and height use millimeters, inches, or PDF points. One inch is 72 points. A4 is 210 by 297 millimeters.

Yes. Every page is placed on the size you pick. Mixed source pages become one target size.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

Resize runs in your browser. Your PDF is not uploaded to a NixRey server. Press F12 and open the network panel. The page may load app code and a worker. That is not your PDF.

Use ↺ / ↻ on a thumbnail for one page. Rotate All applies 90° CCW, 90° CW, or 180° to every page at once.

No. Rotation updates orientation metadata. It does not re-render pages for a quality claim.

Yes. Each ↺ or ↻ adds 90°. Rotate All adds that same turn on every page. Reset angles clears the turns.

No. This sets the PDF page orientation flag. It is not photo EXIF, and it does not re-render the page.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

Not on this page. Odd and even page sets are not shipping. Use ↺ or ↻ on the pages you want, or use Rotate All.

Rotate runs in your browser. Your PDF is not uploaded to a NixRey server. The page may load app and worker code like any website. That is not your PDF upload.

No. Paste and drop stay in your browser. Nothing leaves this device.

Yes. Enlarge a thumbnail. Arrow, box, text, pen, and crop live in that panel. There is no Crop chip on the thumbnail foot.

Paste and drop on this page take PNG, JPG, and WebP. For HEIC, open the related Images tools.

Fit makes each PDF page match the screenshot, plus any margin you choose. A4 and Letter place the screenshot on that paper size, centered.

Press F12 and open the Network panel while you paste and create the PDF. The screenshot stays on this device.

Upload your PDF, add a drawn signature, typed name, or image stamp, place it on the page, and download the signed file.

This tool places a visual signature on the page. It is not a cryptographic certificate signature from a trust provider.

Yes. Repeat the mark on every page, or place marks page by page.

No. Placement and export run in your browser. Your document never leaves your device.

Marks are stored only in this browser. They never leave the device. Remove a thumb to delete it.

Open the PDF, select the pages or type a range, then extract. You get one new PDF. The original file stays intact.

Split PDF copies the pages you select into a new file. Remove PDF Pages deletes the pages you mark and keeps the rest. Use Remove PDF Pages at /remove-pdf-pages when the job is to drop pages.

Yes. Type a range such as 1-5 or 1-2, 4. The page strip follows that range. Click a page to change the selection.

Select that one page, or type its number, then extract. The new PDF has only that page.

Jobs with 3000 or more pages skip the thumbnail strip. Type a range to extract. A single-page preview stays available while you choose.

No. Extract runs in your browser. Your PDF is not uploaded to a NixRey server.

This tool cannot process a password-protected PDF. Unlock it on PDF Password, then come back with the unlocked file.

Yes. Text and logo watermarks both run in your browser. Logo is not a later add-on. Blend mode and Effects stay separate controls.

Text uses font, bold, italic, color, size, tile, opacity, rotation, blend mode, effects, and embed. Logo uses replace, color, size, tile, opacity, rotation, blend mode, effects, and embed. Effects are None, Drop shadow, Outline, Soft glow, and Soft blur. Tile is Off, Grid, or Diagonal.

This tool applies the watermark to all pages. For a subset, hop to /split-pdf first, then watermark those pages. There is no per-page scope on this tool.

This tool cannot process a password-protected PDF here. Unlock it first on /pdf-password, then come back with the unlocked file.

Watermarking runs in your browser. Your PDF is not uploaded to a NixRey server. The page may load app and worker code like any website. That is not your PDF upload.

No. This tool watermarks one PDF. Multi-file batch ZIP stays deferred.

No. The strip runs in your browser. Your files are not sent to a NixRey server. This tool does not download a model.

Before you strip, the warning at the top of Preview lists GPS, device, timestamps, and software when those tags exist. You can search the tag list for a name or a value.

Original keeps the source container when the strip allows. JPEG, PNG, and WebP re-encode after the strip. HEIC cannot stay HEIC in the browser. For HEIC, Original exports a JPEG.

Upright JPEGs use metadata-only binary surgery. There is no quality loss on that path. If Keep orientation upright is on and the file has a rotation tag, the photo is re-encoded once at high quality. PNG and WebP re-encode after the strip.

Yes. Add several JPG, PNG, WebP, or HEIC photos, or paste on an empty queue. Use Strip all EXIF, or Strip remaining when some files are already clean. Download this image, or Download All as a ZIP. Device memory sets the practical limit.

Drop the downloaded file again. CLEAN means no EXIF was detected on that open file.

Paste your text into the input area. Line numbers are prepended to each line instantly. Customise the starting number, separator style, and whether numbers are zero-padded.

Choose from a period and space (1. line), a colon and space (1: line), or a tab character (1 line). The separator appears between the line number and the line content.

Yes: set the starting number to any positive integer. This is useful when adding numbers to a continuation of a larger file.

Zero-padding aligns line numbers by width, for example 001, 002, ... 010 instead of 1, 2, ... 10. The padding width is automatically set to match the total number of lines.

No. The line numbering runs entirely in your browser. Your text is never transmitted anywhere.

UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and alternating case (11 conversions in total).

Sentence case capitalises only the first letter of the entire text (and after every period). All other letters are lowercased.

Title case capitalises the first letter of every word. Short conjunctions and prepositions are sometimes left lowercase in formal style guides, but this tool capitalises every word for simplicity.

No. All conversion happens instantly in your browser. Your text never leaves your device.

Paste or type your text. The character count updates live. Switch between counting with spaces and without spaces using the toggle.

Click any preset button: Twitter (280), SMS (160), Meta Description (155), Title Tag (60), or Instagram (2200). A progress bar shows how much of the limit you have used, changing from green to yellow to red as you approach the limit.

Characters with spaces includes every character including whitespace. Characters without spaces counts only non-whitespace characters. Most social media platforms count spaces as characters.

HTML entities are codes that represent special characters in HTML: characters that would otherwise be interpreted as HTML markup. For example, < becomes &lt; and & becomes &amp;.

Paste your text in the input area and click "Encode". Characters like <, >, &, ", and ' are replaced with their HTML entity equivalents.

Paste text containing HTML entities and click "Decode". Entities like &lt;, &amp;, and &quot; are converted back to their original characters.

The five characters with HTML significance are always encoded: & (ampersand), < (less than), > (greater than), " (double quote), and ' (apostrophe). Extended encoding covers all non-ASCII characters too.

Yes: encoding user-supplied content before inserting it into HTML prevents cross-site scripting (XSS) attacks by ensuring special characters cannot be interpreted as HTML or script tags.

Lorem Ipsum is placeholder text derived from a work of Cicero from 45 BC. It has been used since the 1500s by typographers to fill space in layouts before the final content is ready.

Yes: select the unit (words, sentences, or paragraphs) from the dropdown and enter the desired count. The output updates instantly.

Click the Copy button below the output area. The entire generated text is copied to your clipboard in one click.

Toggle the "Start with Lorem ipsum" option to always begin with the classic opening phrase. When disabled, the generator picks a random starting point in the corpus.

Type or paste Markdown in the left panel. The HTML output and rendered preview update live as you type. Switch between "Preview" and "HTML" views using the toggle above the right panel.

Full CommonMark Markdown is supported: headings, bold, italic, links, images, lists, blockquotes, code blocks (fenced and indented), tables, horizontal rules, and inline code.

Yes: click "Download .html" to save a complete HTML file with a basic document wrapper, or copy just the converted HTML fragment with the "Copy HTML" button.

No. Conversion runs in your browser so there is no server-side limit. Very large documents may take a moment to convert but there is no hard cap.

No. The Markdown parser (marked.js) runs entirely in your browser. Your content is never transmitted anywhere.

Paste your text into the input area. Duplicate lines are removed instantly and the unique lines are shown in the output, preserving the original order.

By default yes: "Apple" and "apple" are treated as different lines. Toggle the case-insensitive option to treat them as duplicates.

Yes: enable the "Sort output" option to sort the unique lines alphabetically after removing duplicates.

Enable the "Trim whitespace" option to strip leading and trailing spaces from each line before comparison. This catches lines that differ only in surrounding whitespace.

There is no hard limit; the tool processes any amount of text directly in your browser. Very large inputs (millions of lines) may be slow depending on your device.

Paste your text in the input, then click a mode button. Reverse Characters reverses the string, Reverse Words reverses word order, Reverse Lines reverses line order, Flip uses upside-down Unicode, and Mirror maps mirrored look-alikes.

Mirror maps each letter to a Unicode character that looks like its horizontal mirror. Characters without a mapping stay unchanged.

It maps each character to a Unicode look-alike that appears upside down when read normally. Not all characters have mappings. Those without mappings stay unchanged.

Yes: the tool uses Array.from() which correctly handles Unicode surrogate pairs and emoji, preventing garbled output on multi-byte characters.

No. All transformations run in your browser. Your text is never transmitted anywhere.

Paste your text into the input area and choose a sort mode: A-Z, Z-A, shortest first, longest first, numeric ascending, numeric descending, or random shuffle. The sorted output appears instantly.

By default yes: uppercase letters sort before lowercase. Toggle the case-insensitive option to sort purely by letter value regardless of case.

Yes: enable the "Remove empty lines" option to strip blank lines from the output. Combined with trim whitespace, this cleans up messy input.

Numeric sort treats each line as a number and sorts by value rather than alphabetically. Lines that cannot be parsed as numbers are sorted to the end.

No. All sorting runs in your browser using JavaScript. Your text is never transmitted to any server.

Paste the first text in the Original panel and the second in the Modified panel. Differences are highlighted inline: green for added words, red for removed words.

Text Diff compares at the word level, showing inline differences within lines. The Diff Checker tool compares at the line level, which is better suited for code and configuration files.

The tool uses the diffWords function from the "diff" library, which implements a token-based diff algorithm that ignores whitespace changes between words.

Yes: Text Diff works on any plain text. For large code files with many line-level changes, the Diff Checker tool may give clearer results as it shows full lines.

No. The comparison runs entirely in your browser. Your text is never transmitted anywhere.

Type the text you want to repeat, set the number of repetitions, choose a separator (newline, space, comma, or custom), and the output is generated instantly.

You can repeat text up to 10,000 times. Very large outputs (millions of characters) may be slow to display and copy depending on your device.

Yes: select "Custom" from the separator dropdown and type any string. It will be placed between each repetition of the text.

Select "None" as the separator and the repetitions will be concatenated without any character between them.

No. Text repetition runs entirely in your browser. Your text is never transmitted anywhere.

A URL slug is the part of a URL that identifies a specific page in a human-readable format, for example, "my-blog-post" in "example.com/blog/my-blog-post". Slugs use lowercase letters, numbers, and hyphens.

All characters that are not letters, numbers, or separators are removed. Spaces are replaced with hyphens (or underscores). Accented characters are transliterated to their ASCII equivalents (e.g. é → e).

Yes: toggle the separator option to switch between hyphen (-) and underscore (_) separators. Hyphens are recommended for SEO as Google treats them as word separators.

You can set a maximum length. Most SEO experts recommend keeping slugs under 60 characters. The tool truncates at the last complete word before the limit.

Paste or type your text into the input area. Word count, character count, sentence count, paragraph count, page estimate, and reading time update instantly as you type.

Pages divide your word count by words per page. The default is 250 words per page. Change the setting to match your document template.

Reading time is estimated at 200 words per minute (average silent reading speed). Speaking time is estimated at 130 words per minute.

Stop words are common words like "the", "a", "is", "in" that carry little meaning. Toggle the option to exclude them from the keyword density table, showing only meaningful content words.

Yes: any sequence of characters separated by whitespace is counted as a word, including numbers, email addresses, and URLs.

Enter scrambled letters, set filters if needed, then click Unscramble or press Enter. Words group by length, longest first.

ENABLE, a public-domain English list with about 172,000 words. It loads once in your browser for the session.

Type ? for each blank tile. The solver treats each ? as any letter. Blanks score zero in Scrabble sort mode.

When checked, only words that use every rack tile appear. When unchecked, shorter words that fit your letters count too.

No. The dictionary loads in your browser. Your letters and results never leave your device.

Paste your text into the input area and click Encode. The Base64-encoded result appears in the output field with a copy button.

Paste your Base64 string into the input area and click Decode. The original text is displayed in the output field.

Standard Base64 uses + and / characters which must be percent-encoded in URLs. URL-safe Base64 replaces + with - and / with _, making the output safe to use directly in URLs and filenames without encoding.

Yes: the encoder uses TextEncoder to handle multi-byte Unicode characters (emoji, accented letters, non-Latin scripts) correctly before encoding to Base64.

HEX (e.g. #ff5733), RGB (e.g. 255, 87, 51), HSL (hue 0–360°, saturation and lightness 0–100%), and CMYK (cyan, magenta, yellow, key/black 0–100%). All formats update instantly when any field is changed.

Click the large color swatch to open the browser's native color picker. Alternatively, type directly into any HEX, RGB, HSL, or CMYK field and all other fields update automatically.

Complementary (opposite on the color wheel), analogous (adjacent colors ±30°), and triadic (three colors 120° apart). These combinations are commonly used in design for harmonious palettes.

CMYK is derived from RGB: divide each RGB channel by 255, find the key (K) as 1 minus the maximum channel, then compute C, M, Y from the remaining channels. This is a mathematical approximation; actual print CMYK depends on the printer profile.

A cron expression is a string of five fields separated by spaces that defines a schedule for a recurring task: minute, hour, day of month, month, and day of week.

Type or paste a cron expression (e.g. "0 9 * * 1-5") and the tool instantly shows a human-readable description and the next 10 scheduled execution times.

Standard five-field cron syntax is supported: * (any), */n (every n), specific values (5), ranges (1-5), and lists (1,3,5). Special strings like @daily and @hourly are also recognised.

The tool calculates next runs using your browser's local timezone. Cron jobs on servers typically run in UTC or the server's configured timezone. Check the timezone shown in the output.

Standard five-field expressions are fully supported. Some systems use six-field expressions with seconds; this tool uses the standard five-field format without a seconds field.

The tool removes all comments (/* ... */), collapses consecutive whitespace into single spaces, and removes unnecessary spaces around punctuation characters like {, }, :, ;, and ,.

For standard CSS, no. The minifier uses safe transformations that preserve all selectors, properties, and values. It does not perform structural changes like merging rules.

Typical reduction is 20-40% depending on how many comments and how much whitespace are in the original. Heavily commented stylesheets see the largest savings.

Yes: CSS custom properties (--my-var) and all CSS features including animations, media queries, and pseudo-selectors are handled correctly.

No. Minification runs entirely in your browser. Your stylesheet is never transmitted anywhere.

Paste your CSV data into the input area or upload a .csv file. The first row is used as the JSON key names by default. The JSON output appears instantly.

Comma, semicolon, tab, and pipe (|). The tool also has an auto-detect option that identifies the most likely delimiter from your data.

Toggle "First row is header" off. The tool will use col_1, col_2, etc. as the JSON keys instead.

Yes: the parser correctly handles RFC 4180 CSV format, including fields wrapped in double quotes that contain commas, newlines, or quotes themselves.

No server-side limit exists since all parsing runs in your browser. Very large files (tens of MB) may be slow to process depending on your device.

Paste the original text in the left panel and the modified text in the right panel. Differences are highlighted instantly: green for added lines, red for removed lines.

The tool uses the Myers diff algorithm (via the "diff" library) which produces the minimal set of edit operations (the same algorithm used by Git).

Yes: the diff checker works for any plain text including source code, JSON, YAML, Markdown, configuration files, or prose. It compares line by line.

Green lines with a "+" prefix are additions (only in the modified/right text). Red lines with a "-" prefix are deletions (only in the original/left text). Unchanged lines have no prefix.

No. All comparison runs locally in your browser. Your text is never transmitted anywhere.

A cryptographic hash is a fixed-length fingerprint of any input. The same input always produces the same hash, but it is computationally infeasible to reverse; you cannot recover the original text from the hash.

For security-sensitive use cases, use SHA-256 or SHA-512. SHA-1 and MD5 are considered cryptographically broken for security purposes, but are still used for checksums and data integrity verification.

MD5 is not safe for password storage or digital signatures, but is still widely used for file checksums, cache keys, and non-security data fingerprinting because it is fast and compact.

No. SHA hashes are computed using the browser's built-in Web Crypto API, and MD5 is computed with a pure-JavaScript implementation. Nothing leaves your browser.

It removes single-line comments (//) and multi-line comments (/* */), then collapses consecutive whitespace. The result is a smaller file with the same runtime behaviour for most code.

No. This is a lightweight basic minifier. It does not rename variables, remove dead code, or perform tree-shaking. Use it for quick size reduction without a build step.

In rare cases: regular expressions containing // may be affected, and strings with /* or */ patterns are handled conservatively. Always test the output before using in production.

Yes: the minifier works on any valid JavaScript text. It does not parse the AST, so modern syntax like arrow functions, template literals, and optional chaining are preserved unchanged.

No. Minification runs entirely in your browser. Your code is never transmitted anywhere.

Paste your JSON into the input area and click Format. The output shows your JSON with proper indentation. Use the indent selector to choose 2 spaces, 4 spaces, or tabs.

Click Validate. If the JSON is valid, you see a success message. If it is invalid, the exact error message and line number are displayed.

Click Minify to remove all whitespace and produce the most compact valid JSON string. This reduces file size for network transfers.

No. All processing happens entirely in your browser using the native JSON.parse and JSON.stringify APIs. Your data never leaves your device.

The input must be a JSON array of objects, where each object represents a row. All objects should share the same keys, which become the CSV column headers. Nested objects are flattened with dot notation (e.g. address.city).

Array values in a field are joined with a semicolon by default and placed in a single cell. Nested arrays of objects are flattened to a JSON string representation.

Comma (,) for standard CSV, semicolon (;) for European locales where commas are used as decimal separators, and Tab for TSV (tab-separated values) that paste directly into spreadsheets.

Yes: click Download to save the output as a .csv file. The file includes the correct UTF-8 BOM so accented characters display correctly in Excel.

A JSON Web Token (JWT) is a compact, URL-safe token with three Base64URL-encoded parts separated by dots: a Header (algorithm and type), a Payload (claims), and a Signature. They are commonly used for authentication.

Decoding is always local in your browser. Optional verification uses the Web Crypto API: enter a shared secret for HMAC (HS256/HS384/HS512), or paste a PEM public key for RSA (RS*/PS*) and ECDSA (ES*). For alg:none, only structure is checked. Secrets and keys never leave your device—never paste production credentials into tools you do not trust.

All decoding and verification happen 100% in your browser; no JWT, secret, or PEM key is sent to any server. However, JWTs may contain sensitive claims; use caution when pasting production tokens.

If the payload contains an "exp" (expiration) claim, the tool displays it as a human-readable date and time, and indicates whether the token has already expired.

You can decode any JWT; verification supports HMAC (HS256/HS384/HS512), RSA PKCS#1 and RSA-PSS (RS*/PS*), ECDSA (ES*), and unsecured tokens (alg:none), all using Web Crypto in the browser.

When you pick RS*, PS*, or ES* for the demo, the tool generates RSA or EC key pairs in your browser with Web Crypto and caches them for the session. They are not uploaded or stored server-side—only for exploring signing and verification in this tab.

Select the base of your input number (binary, octal, decimal, or hexadecimal), enter the number, and the equivalent values in all other bases are shown instantly.

Binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). All four outputs are shown simultaneously so you can compare representations side by side.

Input is accepted in both upper and lowercase (A-F or a-f). The output always displays hexadecimal in uppercase for consistency.

The tool uses JavaScript's Number type, supporting safe integers up to 2^53 − 1 (9,007,199,254,740,991 in decimal). Numbers larger than this may lose precision.

No. All conversions run in your browser using JavaScript's built-in parseInt and toString methods. Your data is never transmitted anywhere.

g (global: find all matches), i (case-insensitive), m (multiline: ^ and $ match line starts/ends), s (dotAll: . matches newlines), and u (unicode: enables full Unicode support).

All matches in the test string are highlighted in yellow. Capture groups are highlighted in distinct colors. The match list below shows each match's value, index, length, and captured groups.

Enter a replacement pattern in the Replace field to preview how String.replace() would transform the test string. Backreferences like $1, $2 refer to capture groups.

Invalid patterns show a red error message instantly. The pattern is wrapped in a try-catch so invalid regex syntax never crashes the tool.

A Unix timestamp (also called Epoch time) is the number of seconds elapsed since 1 January 1970 00:00:00 UTC. It is the standard way computers represent moments in time regardless of timezone.

Paste the timestamp into the input field and select "Timestamp to Date". The equivalent human-readable date and time is shown instantly in your local timezone and UTC.

Use the date picker or enter a date manually in the "Date to Timestamp" tab. The corresponding Unix timestamp (in seconds and milliseconds) is calculated immediately.

Yes: toggle between seconds and milliseconds. JavaScript timestamps (Date.getTime()) are in milliseconds; Unix system timestamps are typically in seconds.

The tool shows a live updating current timestamp at the top of the page. You can copy it with one click.

URL encoding (percent-encoding) replaces special characters with a % followed by their hex code, for example, a space becomes %20 and & becomes %26. This is required for characters that have special meaning in URLs.

Encode (encodeURIComponent) encodes everything including /, ?, =, and &. Use this for query parameter values. Encode Full URL (encodeURI) leaves the URL structure characters intact, encoding only unsafe characters.

Encode query parameter values before appending to URLs, when passing URLs as parameters, or when embedding special characters in href attributes. Always decode before displaying or processing.

Yes: non-ASCII characters like emoji and accented letters are first UTF-8 encoded and then percent-encoded, producing the correct result for modern URL standards.

A UUID (Universally Unique Identifier) is a 128-bit identifier formatted as 8-4-4-4-12 hexadecimal characters (e.g. 550e8400-e29b-41d4-a716-446655440000). Version 4 UUIDs are randomly generated and have astronomically low collision probability.

UUID v4 uses cryptographically secure random values from crypto.getRandomValues(). The probability of generating two identical UUIDs is so low (1 in 2^122) that it is effectively impossible in practice.

Yes: all UUIDs are generated using the browser's crypto.getRandomValues() API, which provides cryptographically strong randomness. No data is sent to any server.

Yes: toggle the "Without hyphens" format option to produce compact 32-character hex strings instead of the standard hyphenated format.

Yes: use the quantity input to generate between 1 and 100 UUIDs at a time. All results are displayed in a scrollable list with individual and bulk copy options.

Select your date of birth using the date picker. Your age in years, months, and days is calculated instantly based on today's date.

Yes: toggle the "Calculate age as of" option and choose a target date. This is useful for calculating age at a past or future point in time.

Age is calculated using JavaScript Date arithmetic: years are counted until the month and day match, then months are counted until the day matches, and remaining days complete the result.

The calculator shows the number of days until your next birthday automatically below the main age result.

BMI is calculated as weight in kilograms divided by height in metres squared (kg/m²). In imperial mode, the formula is (weight in lbs × 703) / (height in inches)².

Underweight: below 18.5. Normal weight: 18.5–24.9. Overweight: 25–29.9. Obese: 30 and above. These are WHO standard thresholds for adults.

BMI is a general screening tool and does not account for muscle mass, age, sex, or ethnicity. Athletes may have a high BMI despite low body fat. Always consult a healthcare professional for a full health assessment.

Yes: toggle to Imperial mode to enter height in feet and inches and weight in pounds. The BMI result and category remain the same.

Select "Days between dates", pick a start date and an end date, and the difference in days, weeks, months, and years is shown instantly.

Select "Add/subtract from date", pick a start date, enter the number of days to add (positive) or subtract (negative), and the resulting date is displayed.

Yes: toggle the "Business days only" option. The calculator will count only Monday–Friday when enabled.

The tool uses JavaScript Date objects which support dates from 1 January 100 to 31 December 9999, covering all practical use cases.

All calculations use the local date in your browser's timezone. The results show whole calendar dates (no time component), so timezone differences do not affect the day count.

Use Mode 1: enter the percentage in the first field and the total in the second field. The result updates automatically.

Use Mode 2: enter both values and the calculator shows what percentage the first number is of the second.

Use Mode 3: enter the original value and the new value. The calculator shows the percentage increase or decrease between them.

Yes. In Mode 1, if you know the discounted amount and the percentage, you can rearrange: the original price equals the discounted amount divided by (1 - discount%). Mode 3 also works for finding the starting value from a final value and a percentage change.

Trigonometric (sin, cos, tan and their inverses), logarithms (log base 10, natural log), square root, power, factorial, absolute value, and the constants π and e.

Use the DEG/RAD toggle button. When in degree mode, sin(90) = 1. In radian mode, sin(π/2) = 1. The current mode is shown on the display.

Yes: click the expression field and type a formula directly, or use the buttons to build the expression. Press = or Enter to evaluate.

Yes: the last 10 calculations are shown in the history panel below the calculator. Click any history entry to restore that expression.

Select a source timezone and enter a time, then choose one or more target timezones. The converted times update instantly. All major world timezones are included.

Yes: the conversion uses the browser's Intl.DateTimeFormat API, which automatically applies the correct DST offset for the selected date in each timezone.

Over 40 major world timezones across all continents, including all US zones, European zones, Asian zones, and Australian zones.

Yes: add multiple target timezones using the "Add timezone" button. All clocks update live every second.

Length, Weight/Mass, Temperature, Volume, Area, Speed, Time, and Data/Storage. Select a category tab to see all units in that group.

Select a category, choose the from and to units in the dropdowns, and enter a value. The result updates instantly. Use the swap button to reverse the conversion.

Temperature uses formula-based conversion (not a simple multiplication factor): Celsius to Fahrenheit is (C × 9/5) + 32, and to Kelvin is C + 273.15. All other temperature combinations are derived from these.

Bits, Bytes, Kilobytes, Megabytes, Gigabytes, Terabytes, and their binary equivalents (Kibibytes, Mebibytes, Gibibytes, Tebibytes).

Passwords are generated using the browser's crypto.getRandomValues() API, which produces cryptographically secure random values. This is the same randomness source used by password managers.

Uppercase letters (A–Z), lowercase letters (a–z), numbers (0–9), and symbols (!@#$%^&* etc.). You can enable or disable each group independently.

Characters that look similar and cause confusion: 0 (zero) and O (capital o), 1 (one) and l (lowercase L) and I (capital i). Enabling the "exclude ambiguous" option removes these from the character set.

No. Password generation runs entirely in your browser. The password is never transmitted to any server. We never see what you generate.

The score is based on length (longer = stronger), character variety (uppercase, lowercase, numbers, symbols), absence of common patterns (keyboard walks like "qwerty", repeated characters), and not being a commonly used password.

Estimated crack time is based on a brute-force attack at 10 billion guesses per second (approximate speed of modern GPU cracking hardware). This is a theoretical estimate, not a guarantee.

No. Password analysis runs entirely in your browser using JavaScript. Your password never leaves your device. There is no network request made.

A strong password is at least 12 characters long, uses a mix of uppercase, lowercase, numbers, and symbols, avoids dictionary words and personal information, and is unique to each account.

Yes: the generator uses the browser's crypto.getRandomValues() API which provides cryptographically secure pseudorandom numbers, the same source used by security software and password managers.

Yes: disable the "Integers only" option to generate decimal (floating-point) numbers. You can also control the number of decimal places.

Yes: disable the "Allow duplicates" option. The generator will only produce unique values within your specified range. Note: the quantity cannot exceed the range size in this mode.

The min and max can be any integer within JavaScript's safe integer range: −9,007,199,254,740,991 to 9,007,199,254,740,991.

Yes: enable the "Sort results" option to display the generated numbers in ascending order.

Pick a base color using the color picker or enter a HEX value. Choose a harmony type (complementary, analogous, triadic, etc.) and a 5-color palette is generated instantly.

Complementary (opposite on the color wheel), Analogous (adjacent colors ±30°), Triadic (120° apart), Split-complementary (base + two colors flanking its complement), Monochromatic (shades of the same hue), and Random.

Yes: each swatch shows the HEX, RGB, and HSL values with individual copy buttons. Click the swatch itself to copy the HEX code.

Yes: export as CSS custom properties (--color-1: #hexvalue;) or as a JSON array for use in design tools or code.

The palette is generated purely from color math. Check the contrast ratios of your chosen colors against text using a dedicated contrast checker for WCAG accessibility compliance.

Enter a target date and time using the date and time pickers, optionally give the event a name, and the countdown starts immediately showing days, hours, minutes, and seconds remaining.

The display changes to a completion message. The countdown does not go negative; it simply stops when the target time is reached.

Yes: the target date and event name are encoded in the URL. Copy the URL to share the exact same countdown with others.

The countdown updates every second and is based on the actual current time versus the target time, so it remains accurate even if the tab is inactive.

Enter the target time in your local timezone and the countdown will be accurate from your perspective. For events in another timezone, convert the event time to your local time first.

Each spin uses a cryptographic random seed and a published algorithm. You can read the method in the fairness panel before you spin. The wheel animation lands on the result the math already chose.

Wheels save in your browser through IndexedDB on your device. Nothing uploads to Nixrey servers. Find the tool under More > Utilities in the navbar or Everyday Utilities on the /tools hub.

Yes. Share links encode the wheel in the URL. You can send an edit link, a spin-only link, or an audit link that shows results without allowing new spins.

Switch to Raffle Mode to lock the entry list, draw winners one at a time, and download a JSON receipt for every draw. Winners can be removed from the wheel automatically after each spin.

Each raffle draw ships a receipt with the entry list hash, committed seed hash, and revealed seed. Anyone can upload that file to the built-in verifier and confirm the winner matches the published math.

Yes. Load /embed/decision-wheel.js from Nixrey and call NixreyDecisionWheel.mount with a container element. The SDK creates an iframe pointed at /decision-wheel?embed=1 and forwards wheel:ready, wheel:spin-start, and wheel:spin-end events to your page.

An audit link shows a read-only snapshot of the wheel and any raffle draws recorded when you copied the link. Recipients cannot spin or edit. Share a fresh audit link after more draws to update the log.

No. Entry photos, center logos, and wheel backgrounds stay on your device. Shared links carry text labels, colors, and raffle data only.

Entry names are read-only in the list. Delete the row and add the name again through paste or CSV import. Weights, colors, and images stay editable on each row.

Yes. Paste and CSV import skip labels that already appear on a visible entry. Matching ignores letter case. Hidden raffle entries do not block the same label.

Add images appends one new entry per file. Bulk upload does not attach images to existing text rows. Each file uses its filename as the entry label.

Reset wheel clears all entries and restores default settings. It removes your title, images, scores, and spin history. Favorite and Plinko Start over keep your entry list and only reset the session.

You face options one pair at a time. Your pick stays on screen. The other slot gets the next option until every item has had a turn and one winner remains.

Narrow down runs repeated bracket passes. After each pass, the lowest scorer is eliminated until one option wins. You can accept the current leader early instead of finishing every elimination.

Paste 2 to 64 text lines, up to 80 characters each. Add up to 32 JPG, PNG, or WebP images via Add images or per-row upload. Text and images share one list.

Yes. Add images to the same list as text options. You pick the favorite in each head-to-head pair until one image wins. Processing stays in your browser.

Start over during a run restores your initial list to setup and keeps scores. Play again on the winner screen does the same. Clear all entries wipes the list and scores.

Items are shuffled in a secure random order at the start of every run, including Play again.

You choose the favorite in each pair. Shuffle only sets the order options appear. Nothing is picked for you at random.

Yes. Undo last pick steps back one matchup. It is disabled on the first match of a run.

No. Text and images stay in your browser. Match logic runs locally with no server upload.

Notes are saved automatically to your browser's localStorage. They persist across page refreshes and browser restarts on the same device and browser. Clearing your browser data will delete the notes.

No. Notes are stored only in your current browser's localStorage. They do not sync across devices or browsers. This is by design for privacy.

Notes are saved after every keystroke with a short debounce (300 ms). The "Saved" indicator in the status bar confirms when your latest changes have been saved.

Yes: click "Download .txt" to save the current contents as a plain text file. This is useful for backing up or sharing your notes.

The limit is your browser's localStorage quota, typically 5 MB per domain. This is enough for millions of words of plain text.

A marble falls through staggered pegs and three rotating bars. Peg and bar hits deflect the path. Buckets at the bottom map to your options. Whichever bucket the marble lands in wins.

Add at least 2 options. Max count depends on board width. Each line can be up to 10 characters.

No. Your options and the simulation run entirely in your browser. Nothing is sent to Nixrey servers.

Bucket order shuffles before each drop with secure randomness. The marble path is physics-driven. Whichever bucket it lands in wins. The result matches the landing slot.

Yes. Share your screen while the marble drops. The board fills the tool area. There is no skip button in this version, so viewers see the full drop.

Add images appends one new entry per file. Your text rows stay unchanged. Each image becomes its own option with the filename as the label.

Start over restores your initial entry list to setup and keeps scores. IndexedDB images for those entries stay on your device.

The Pomodoro technique is a time management method that breaks work into focused 25-minute sessions ("pomodoros") separated by short 5-minute breaks. After 4 pomodoros, you take a longer 15-minute break.

Yes: click the settings icon to adjust the work session length, short break length, long break length, and the number of sessions before a long break.

Yes: a short beep sounds when each phase completes. The alert uses the Web Audio API and runs entirely in your browser with no external audio files.

Work (red): focused work session. Short break (green): brief rest. Long break (blue): extended rest after completing a full set of pomodoros. The current phase is shown prominently.

Yes: the timer uses clock-difference tracking, so switching tabs or minimising the browser does not affect accuracy. You will hear the alert when you return.

Drop or paste a JPG, PNG, WebP, or HEIC image. The text appears in Preview. Copy it, or open a link only if you trust the destination.

Deny is safe. The page shows Camera blocked and file intake still works. Frames never left this device. You can allow the camera later in the browser site settings.

No. A live scan draws frames to a canvas and runs jsQR on this device. Nothing is posted to a server. There is no scan tracking.

Most browsers allow getUserMedia only on a secure page. https://nixrey.com and localhost qualify. If the camera is blocked, use a photo instead.

A banner appears at the top of Preview. Remove EXIF Data opens with that photo already loaded. The decoded text is separate from the photo file.

HEIC from an iPhone is accepted when this browser can read it. If it cannot, convert with HEIC to JPG first. The file stays on this device.

It displays your screen resolution (the physical display size), browser viewport size (the visible area inside the browser window), device pixel ratio (DPR), colour depth, and screen orientation.

Screen resolution is the total pixel count of your physical display. The viewport is the area the browser uses to render the page; it is smaller because the browser chrome (toolbar, address bar) takes up space.

Device pixel ratio (DPR) is the ratio of physical pixels to CSS pixels. A DPR of 2 means the display is a "Retina" or HiDPI screen where one CSS pixel corresponds to 2 × 2 physical pixels.

Yes: the tool listens for window resize events and updates the viewport dimensions in real time as you drag the browser window.

No. All screen information is read directly from browser APIs (window.screen, window.innerWidth, devicePixelRatio). Nothing is transmitted anywhere.

The stopwatch uses performance.now() for timing, which provides sub-millisecond precision in modern browsers. The display updates every 10 ms for smooth millisecond readout.

Click the Lap button while the stopwatch is running. Each lap time is added to the list below, showing both the lap split and the cumulative elapsed time.

The Countdown tab lets you set a specific duration in hours, minutes, and seconds. The timer counts down and shows a completion alert when it reaches zero.

Yes: the timer continues running in the background. When you return, the elapsed time is accurate because it is based on clock differences, not on display refresh cycles.

Yes: click Reset at any time. Resetting a running stopwatch stops it and clears the elapsed time. All lap records are also cleared.

Instagram 320, X and LinkedIn 400, Facebook 320, YouTube 800, and Discord 512. Each export is a square cover crop.

Circle clips the avatar. Square keeps the full square. There is no third shape.

No. You pan the cover crop yourself. There is no cloud face auto-crop.

Yes. Include several photos and download a ZIP. Drag still sets the pan for the active photo.