How do I convert an image to black and white?

Upload your image, choose a conversion mode (Grayscale, Sepia, or Black & White), then click Download.

What is the difference between Grayscale and Black & White?

Grayscale produces a full range of gray tones. Black & White (threshold mode) converts each pixel to either pure black or pure white with no gray — producing a high-contrast graphic look.

What is the threshold slider for?

In Black & White mode, the threshold determines where the cutoff is between black and white. Pixels brighter than the threshold become white; darker ones become black. Adjusting it controls how much of the image appears white vs black.

Will the image quality be affected?

No — the pixel dimensions stay the same. Only the color information is changed. The output PNG preserves full quality.

Grayscale Image

Convert color photos to grayscale, sepia, or high-contrast black and white. Instant before/after preview.

Your files never leave your device

Drop your image here or browse

Supports JPG, PNG, WebP, HEIC

How to Grayscale Image

Upload your image by dragging it onto the upload area or clicking to browse.
Select a mode: Grayscale (natural gray tones), Sepia (warm brown tones), or Black & White (pure black/white).
For Black & White mode, adjust the threshold slider to control the cutoff point.
Click Preview to see the before/after comparison.
Click Download PNG to save the result.

Why Use This Tool?

Grayscale conversion is useful for artistic effects, document scanning preparation, accessibility testing, or reducing image complexity. Black and white threshold conversion creates stark, high-contrast graphics from photos. All processing happens instantly in your browser.

Grayscale Image

How to Grayscale Image

Why Use This Tool?

Frequently Asked Questions