Convert PNG to WEBP
online, without ever uploading it.
MediaBay is a online image converter that converts your files PNG (Portable Network Graphics) to WebP (format moderne par Google) right in your browser. Processing uses your device's native and WebAssembly APIs — not a single pixel travels across the internet.
One rule. Just one.
Your files never leave your device. Verifiable in the DevTools.
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The image converter PNG to WEBP, 100 % online.
Use our free online image converter to turn your PNG files into WEBP in seconds. Unlike other online converters, MediaBay performs the PNG to WEBP conversion right in your browser — without uploading your files to a remote server.
Whether you need to convert PNG to WEBP once in a while or process several images in a row, this online image converter runs locally thanks to the HTML5 Canvas and WebAssembly APIs. No hidden limits, no sign-up, no watermark on the final WEBP file.
Why convert a PNG to WEBP.
The PNG (Portable Network Graphics) format is widely used, but it isn't always suited to every use case: web sharing, editing, archiving, compatibility.
The WebP (format moderne par Google) format offers an alternative — often lighter, more modern, or more universal. With our PNG to WEBP converter, the switch takes just seconds, without uploading your files anywhere.
MediaBay vs Other Converters.
Most online image converters upload your files to a server. MediaBay doesn't. Here's the difference, point by point.
| MediaBay | Other converters | |
|---|---|---|
| Transfer | MediaBay No upload — processed locally, in your RAM | Other converters Your files uploaded to a cloud server |
| Speed | MediaBay Instant — independent of your connection | Other converters Slow — capped by your network upload speed |
| Privacy | MediaBay Absolute — no file kept, no trace | Other converters Files stored temporarily on third-party servers |
| Limits | MediaBay No paywall — up to 100 MB per file, no watermark | Other converters Aggressive limits (often 5 MB) or forced watermarks |
Convert PNG to WEBP — frequently asked questions.
How do I convert a PNG file to WEBP?
Drag your PNG image into the drop zone, choose WEBP as the output format, then click Convert. The download starts automatically.
Is PNG to WEBP conversion free?
Yes, completely. MediaBay is free, with no sign-up and no reasonable usage limit.
Are my images uploaded to a server?
No. Conversion is 100% client-side: everything happens in your browser thanks to WebAssembly. Not a single pixel leaves your device.
Is WEBP quality preserved?
Yes. WEBP uses a high-quality encoder; you can adjust the quality slider manually.
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