WebP Converter
Convert images to WebP for smaller files on the web, or turn WebP back into PNG and JPEG where support is needed.
Convert with this tool
or choose a file from your device — it is processed in this tab and never uploaded
Accepted: JPEG, PNG, GIF, BMP, AVIF, and existing WebP files
Files stay on your device. There is no upload, no queue and no watermark, so a conversion works even with the network switched off after the page has loaded.
Supported formats & processing
| Accepted input | JPEG, PNG, GIF, BMP, AVIF, and existing WebP files |
|---|---|
| Produced output | WebP (lossy or lossless), JPEG or PNG |
| Processing | Web Audio API + canvas + native JavaScript encoders |
| Upload required | No — the file is read locally and never transmitted |
How to use this tool
- Add the imageThe source format and its encoding are reported immediately.
- Choose WebP as the outputUse the quality slider for photographs; PNG-style lossless is available by keeping the quality at maximum.
- Set the backgroundTransparent areas stay transparent in WebP, unlike JPEG.
- ConvertEncoding is handled by the browser's own WebP encoder.
- Compare the sizesWebP output is usually 25–35 percent smaller than the equivalent JPEG.
About this tool
WebP is a modern format that supports both lossy and lossless compression plus transparency. For photographs it typically produces files 25–35 percent smaller than JPEG at the same perceived quality, and for graphics with transparency it beats PNG by a wider margin.
This converter works in both directions. Converting to WebP is the win for web delivery; converting back to PNG or JPEG is what you need when an application, a print workflow or an older browser cannot open WebP. The result card reports the source encoding — lossy VP8, lossless VP8L or the extended VP8X variant — so you know what you are starting from.
Features
- Two-way conversion: to WebP and back to PNG or JPEG
- Lossy and lossless WebP output
- Alpha channel preserved in WebP
- Reports whether the source was VP8, VP8L or VP8X
- Quality slider with a live percentage readout
- No upload, so private images stay on your device
Frequently asked questions
Which browsers support WebP?
All current versions of Chrome, Edge, Firefox, Safari and Opera, plus Android and iOS system browsers. Support has been universal since 2020, so the compatibility argument against WebP is largely historical.
Is WebP always smaller than JPEG?
At the same perceived quality it usually is, by 25–35 percent. The exception is very small images where container overhead dominates, and content that is already highly compressible.
Does WebP support animation?
Yes, animated WebP exists and generally beats GIF on both size and colour depth. This tool works on still images; use the video to GIF tool for animation, or an encoder for animated WebP.
Can I lose quality converting JPEG to WebP?
A lossy WebP re-encode adds one generation of compression. At quality 80 or above it is very hard to see, and the file is still smaller than the JPEG it came from.