PNG to Grayscale (Black & White)
Turn colour PNG images black and white while keeping transparency
Turn a colour PNG black and white
Grayscale gives an image a timeless, focused look and is often required for print, forms or a consistent visual style across a set of pictures. Removing colour also draws attention to shape, contrast and texture rather than hue.
This tool converts each pixel to a shade of grey based on its brightness, producing a proper monochrome result while leaving any transparency exactly as it was. Everything runs in the browser, so a whole batch converts instantly and privately.
How to convert a PNG to grayscale
- Drop your PNG images into the box above, or click to choose them.
- Each one is converted to black and white automatically.
- Preview the monochrome result against the original.
- Click Download PNG, or export the batch as a ZIP.
Why go grayscale?
A clean, classic look
Black and white removes the distraction of colour and lets composition, light and texture carry the image.
Consistency across a set
Converting a group of images to grayscale gives a gallery or document a unified feel, even when the originals clash in colour.
Transparency preserved
The alpha channel is left alone, so logos and cut-outs stay transparent while their colours turn to grey.
Frequently Asked Questions
Are my images uploaded to convert them?
No. The grayscale conversion runs in your browser on your own device, so the PNG is never uploaded and stays private.
Does the transparency survive?
Yes. Only the colour is removed; the alpha channel is untouched, so transparent areas stay transparent in the grayscale version.
Can I get the colour back afterwards?
No. Converting to grayscale discards the colour information, so keep a copy of the original if you might need the colour version again.
Can I convert several PNGs at once?
Yes. Add a batch of PNG files and download all of the black and white results together in one ZIP.
Is this a true grayscale conversion?
Yes. Each pixel is reduced to a shade of grey based on its brightness, giving a proper monochrome image rather than a faded colour one.