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Convert photos to grayscale without uploading

Soft grayscale or hard black and white with a threshold. Live before and after. Batch ZIP. Files never leave this device.

Grayscale a photoSee how it works

Stays in your browser · nothing leaves this device

  • Gray and true black and whiteThreshold for hard black and white
  • Batch ZIPPaste and a multi-file queue

Grayscale Image

Convert color photos to soft grayscale or hard black and white. Stays in your browser.

Stays in your browser

Preview

Drop a photo to preview grayscale or black and white. Zero upload. No AI cloud.

How it works

Four steps from drop to download. Nothing is uploaded. The preview updates as you drag.

  1. 1

    Drop or paste

    Add JPG, PNG, WebP, or HEIC one at a time or as a batch.

  2. 2

    Pick gray or black and white

    Intensity softens gray. Threshold sets the hard black and white cutoff.

  3. 3

    Preview live

    The filtered photo updates as you move the slider. No apply button.

  4. 4

    Download under Preview

    Pick JPEG, PNG, or WebP. Download one file or a ZIP.

Frequently Asked Questions

Gray versus black and white, export, batch, and privacy.

How do I convert a photo to grayscale?

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

What is the difference between Grayscale and Black and White?

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

What is the threshold for?

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

Can I filter a batch?

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

Do my photos get uploaded?

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

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