Convert PNG and JPG to WebP
Drop PNG or JPG images and get WebP files that load faster on your website. Quality and size update live.
Add this calculator to your website
Copy the code and paste it into your page's HTML. It's free; please keep the credit link.
How it works
WebP was designed by Google for the web. It supports transparency and animation like PNG and GIF, with compression closer to JPG, which makes it a good default for website images. All major browsers display it today.
JPG vs PNG vs WebP vs HEIC
| JPG | PNG | WebP | HEIC | |
|---|---|---|---|---|
| Compression | Lossy | Lossless | Lossy or lossless | Lossy |
| Transparency | No | Yes | Yes | Yes |
| Animation | No | APNG | Yes | Image sequences |
| Best for | Photos | Logos, screenshots, graphics | Websites | iPhone photos |
| Opens almost everywhere | Yes | Yes | Modern browsers and apps | Apple devices; limited elsewhere |
Frequently asked questions
How much smaller is WebP?
Google reports lossy WebP files are 25–34% smaller than comparable JPGs, and lossless WebP about 26% smaller than PNG. For screenshots and graphics saved as PNG, lossy WebP is often far smaller still.
Why did I get a PNG instead of a WebP?
Safari can display WebP but can't create it. Use Chrome, Edge or Firefox to convert.
Are my images uploaded?
No. The conversion runs entirely in your browser, so your photos never leave your device. You can even go offline after the page loads.