Grayscale Image
Convert photos and graphics to grayscale when colour is distracting, expensive to print, or unsafe to rely on. The conversion keeps alpha transparency where the output format supports it, so logos, screenshots and cut-out PNGs can stay clean. It is free, needs no account, and adds no watermark to your result.
Grayscale Image
Add your files. Recommended settings are ready, so you can process in one click.
PDF, Word, images, audio, video, archives and more
Up to 100 files · 250 MB · No account- 1Add files
- 2Choose an action
- 3Download or keep going
What happens to your file.
Each pixel is converted using its brightness contribution rather than simply dropping the red, green or blue channel. That matters because green contributes more to perceived brightness than blue: a proper grayscale conversion keeps skies, skin, shadows and coloured text closer to how people actually see them. Transparent pixels stay transparent when you save as PNG or WebP, while JPG exports use an opaque background because JPG has no alpha channel.
Where it stops: Colour information is removed from the output and cannot be reconstructed from the grayscale file. Keep the original if you might need colour later. A grayscale version can also make two different brand colours look identical, so check charts, status badges and warning labels before using it as the only accessible version.
When grayscale is the right edit
Use grayscale when colour itself is not the information. It works well for receipts, scanned notes, diagrams with strong labels, interface screenshots and photo sets where a consistent black-and-white look is intentional.
What to check before downloading
- Text should still stand apart from its background.
- Important chart series should not collapse into the same shade.
- Transparent logos should be saved as PNG or WebP, not JPG.
- Photos meant for print should be checked at the final print size.
What people use it for.
Everything you need, without a paywall.
Common questions.
Is grayscale the same as desaturating?
It is similar, but a proper grayscale conversion weights channels so brightness looks natural.
Can I convert many images?
Yes. Batch mode applies the same grayscale conversion to each file.
Will file size shrink?
Sometimes, especially for PNGs with fewer distinct colours, but the main purpose is appearance, printing and review. Use Compress Image when size is the main goal.
Which output format should I choose?
Use PNG or WebP when transparency matters. Use JPG for photos that will be emailed, uploaded or printed where transparency is not needed.
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