In-browser tool

Black & white image

Convert a photo to grayscale on your device — no upload, no watermark.

Drop an imageEdited on your device — nothing is uploaded

JPG · PNG · WEBP · GIF · BMP

Editing runs on a canvas in your browser — the image never leaves your device. Re-encoding drops EXIF/GPS metadata.

How it works

Drop an image

Adjust the setting and apply

Download the result — nothing was uploaded

Is this the same as “desaturate”?

Close: we use luminance weighting (0.299 R, 0.587 G, 0.114 B), which keeps natural brightness instead of a flat average.

Is my file uploaded to a server?

No. This tool runs entirely in your browser. You can open your browser's network tab and verify no request carries your file.