Is this true grayscale?

Yes — luminance is computed per pixel and applied with the standard Rec. 709 coefficients via a Canvas filter.

Can I convert multiple images at once?

Yes. Free accounts can process up to 3 at a time, Plus is unlimited.

No, conversion runs in your browser.

Convert any image to grayscale (black & white). Free, in-browser, full quality.

Full quality · No cost · 100% in your browser

Drag & drop or click to choose

JPG, PNG, WEBP — bulk processing up to 3 (unlimited with Plus)

Your file is processed in your browser. Nothing is uploaded.