Free tool
PNG to WebP converter
Convert PNG and JPG images to WebP, the format browsers load fastest. Pick the quality, keep transparency, and keep your files on your device.
- Free, no sign-up
- Runs in your browser, nothing uploaded
- Many images at once
PNG to WebP
On this device
Guide
Good to know
Why use WebP
Every current browser displays WebP, and at the same visual quality it is usually much smaller than PNG and smaller than JPG too. Lighter images make pages load faster, which visitors notice and search engines reward.
Picking the quality
Higher quality keeps more detail and gives a bigger file. For photos, 75 to 85 is usually enough; for screenshots, logos and graphics with sharp edges, stay at 90 or above. Transparent areas of a PNG stay transparent.
Does WebP keep transparency?
Yes. WebP has an alpha channel, so transparent PNG backgrounds stay transparent.
Why does my browser say it can't save WebP?
Some browsers, older versions of Safari among them, can show WebP images but can't create them. Use Chrome, Edge or Firefox for WebP, or pick PNG or JPG.
Are my images uploaded?
No. The conversion runs inside your browser, so your images stay on your device. Files are only uploaded if you choose to optimize them with Arche, and those are deleted within 48 hours.
What is Arche?
Arche makes JPEG, PNG and WebP images smaller without changing their format or pixel size, and strips metadata such as EXIF location. It is free without an account; Pro raises the batch limits.
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Need smaller files, not just a new format?
Arche recompresses JPEG, PNG and WebP in the same format and size. Free without an account; files are deleted within 48 hours.