PNG to WebP converter online — free
Convert PNG files to WebP online, free and instantly. Shrink PNGs to WebP while keeping transparency. Conversion runs locally in your browser, so your files are never uploaded and the result is ready to download in seconds.
How to convert PNG to WebP
- Drop your PNG into the upload box, or click to browse.
- Click Convert — your PNG is turned into a WebP right in your browser.
- Click Process — everything runs instantly in your browser, with nothing uploaded.
- Preview the result and download it — or send it straight to another JustGIF tool to keep editing.
Features
- Fast PNG to WebP conversion
- No quality lost to uploads or re-compression queues
- Runs locally in your browser — your files never leave your device
- 100% free: no sign-up, no watermark, no file-count limit
- Works on any device — Windows, Mac, Linux, Android and iPhone
Frequently asked questions
Does WebP keep PNG transparency?
Yes — transparency is preserved and the file is much smaller.
Is PNG to WebP free to use?
Yes. PNG to WebP is completely free with no account, no watermark, and no limit on how many files you can process.
Do my files get uploaded to a server?
No. JustGIF processes everything locally in your browser, so your files stay private on your device and nothing is uploaded.
Does it work on my phone?
Yes — JustGIF runs in any modern browser, including Chrome and Safari on phones and tablets, with no app to install.