Drop PNG pictures here
or
.png · as many as you like · nothing leaves your device
Why WebP?
WebP keeps see-through parts like PNG but is usually much smaller, so pages load faster. Drop the pictures in, then save them one by one or all together as a zip. Your browser must be able to make WebP (Chrome, Edge and Firefox can; Safari on some Macs cannot).
How to use it in 4 steps
- 1Drop your PNG pictures onto the box, or press Choose photos.
- 2Each is converted and shows a preview with its new size.
- 3Press Save, or Save all as one zip.
- 4Use the WebP files on your website to make pages load faster.
Why use WebP instead of PNG
WebP can keep everything a PNG keeps, including see-through areas, in a much smaller file. For a website, that means faster pages and less data used by visitors. This page turns PNG files into WebP so you can use them on a site, in an app or anywhere a smaller file helps.
Typical savings are large for photographs and moderate for flat graphics. The exact amount depends on the picture.
Before you publish
Check that the place you are using the picture supports WebP. All current browsers do, but some older programs, email systems and print services do not. If you are unsure, keep the PNG as a backup and use the WebP for the web only.
Quality and transparency
Transparent areas stay transparent. The conversion is made with a high quality setting so the picture looks the same for everyday use. Your original PNG is never changed.
A quick example: a screenshot that is too heavy for a help page
You have written a help page with 8 screenshots, each a 1.4 MB PNG. Drop them all in, press Save all as one zip, and compare the sizes on the cards. Screenshots with flat colours and sharp text often shrink by half or more, and your page then carries around 5 MB less to every visitor.
Photos shrink by a similar or larger share. See-through areas stay see-through, so logos and cut-outs still sit properly on any background.
Good to know
Look at the finished pictures at full size before you replace anything, especially thin lines and small text. Keep the PNG files as your masters, because you can always make a new WebP from them but cannot go back the other way. If you need a picture to open in office programs, a messaging app or a printing service, keep sending the PNG or use PNG to JPG.
If a picture is a photograph saved as PNG by mistake, the saving can be dramatic, sometimes down to a tenth of the size. For a tiny icon of a few kilobytes the difference is small and may not be worth the bother, so look at the sizes on the cards before you change a whole folder.
Related tools
Questions people ask
Why turn PNG into WebP?
WebP files are usually much smaller than PNG files, which helps a website load faster, and WebP can keep see-through areas just as PNG does.
Are see-through areas kept?
Yes. A see-through background in your PNG stays see-through in the WebP.
Is the quality the same?
The picture is saved at high quality but it is not a perfect copy, so tiny details may differ slightly. For most logos and pictures the difference is hard to see.
It says my browser cannot make WebP. What now?
Making WebP files needs a browser that supports it. Chrome, Edge and Firefox do. Safari on some Macs does not, and the tool says so instead of giving you the wrong file.
Are my pictures uploaded?
No. Everything happens inside your browser.