Click to upload or drag & drop a photo
Processed entirely in your browser — nothing is uploadedGrayscale vs. black & white
Grayscale keeps a full range of grey tones, giving a smooth, photographic look. If you want a stricter, high-contrast two-tone result instead (pure black and white, no greys), use our black & white tool, which is better suited to sketches, signatures, and scanned documents.
How to use Convert Image to Grayscale
- Upload the photo you want to edit.
- Adjust any sliders, colours, or options shown above the upload box — the preview updates as you go.
- Compare the before and after side by side.
- Download the edited photo once it looks the way you want.
Tips for best results
- Try a few different settings before downloading — most sliders here update the preview instantly, so it's quick to compare options.
- Work from your best-quality original; effects applied on top of an already-compressed photo tend to look rougher.
- If you're combining this with another tool (like compressing afterwards), apply this effect first, then compress last.
❓ Frequently asked questions
Can I apply this more than once to stack the effect?
Yes — download the result and re-upload it to apply the effect again, though stacking some effects can look over-processed quickly.
Does this work on PNG images with transparency?
Transparent areas are generally preserved unless the tool specifically converts to JPG, which fills transparency with white.
Will this reduce my file size?
Often slightly, since grayscale images can compress a little more efficiently than full-colour ones, though the main purpose here is the visual effect, not compression.
Can I convert back to colour afterwards?
No — once colour information is removed it can't be automatically restored; keep your original file if you might need the coloured version later.
Does this work on already-grayscale images?
Yes, the tool will simply confirm there's no colour left to remove.