Grayscale Image

Colours are converted to shades of gray using perceptual weighting, where green contributes most to brightness and blue least. This matches how your eyes perceive lightness, so the result looks natural instead of the flat, muddy tones a plain channel average produces.

It controls how much colour is removed. At 100% the image is fully black and white; lower values blend back some of the original colour, giving a faded or muted look that works well for backgrounds and overlays.

No. Grayscale removes colour entirely, leaving neutral grays. Sepia keeps a warm brown tint for a vintage effect. This tool produces true neutral grayscale.

Sometimes, because there is less colour information to store, but the format still records three colour channels, so the saving is modest. If you need a smaller file, follow up with the image compressor.

Yes for PNG and WebP — transparent areas stay transparent and only the visible pixels are desaturated. JPGs have no transparency, so any clear areas become white.

JPG, PNG and WebP. The download keeps the same format you uploaded.

Not from the downloaded file — once colour is removed and saved it cannot be recovered. Keep your original if you might want the colour version later; the tool never modifies your source file.

No. Desaturation runs entirely in your browser with the Canvas API. Nothing is sent anywhere and it works offline after the page loads.

Yes. Any JPG, PNG or WebP works, whether it is a photo, a screenshot or a flat graphic. Flat graphics with few colours simply become their gray equivalents.