Convert images to WebP for a faster website
Images are usually the heaviest part of a web page. WebP, developed by Google, compresses photos better than JPG and graphics better than PNG, and every current browser can display it. Converting your images to WebP before uploading them to your site, blog or online store is one of the simplest ways to speed up page loads.
This converter takes JPG and PNG files, so you can convert your photos and your transparent graphics in the same batch. Each file keeps its width and height; only the encoding changes. hero.jpg becomes hero.webp, and several files come back in a single ZIP.
Choosing the quality
The Quality slider runs from 50% to 100%, with 85% as the default — a little lower than the 92% our JPG tools use, because WebP holds up well at lower settings.
| Quality | Typical use |
|---|---|
| 75% | Large background and hero images |
| 85% (default) | Blog and article photos, general website images |
| 90–95% | Product photos, portfolios, images with fine texture |
The preview shows your image before encoding, so it does not change with the slider; after downloading, the page shows the total size before and after, so you can see what you saved and try another setting. If the WebP ends up larger than your JPG — which can happen with an already heavily compressed JPG — lower the quality or keep the original.
JPG, PNG or WebP?
| JPG | PNG | WebP | |
|---|---|---|---|
| Compression | Lossy | Lossless | Lossy (this tool) |
| Transparency | No | Yes | Yes |
| File size for photos | Medium | Large | Smallest of the three |
| Opens in every app | Yes | Yes | Most, not all |
WebP is ideal for publishing on the web, less so for sending to people: some email clients, office software and print services still prefer JPG. For those, convert back with WebP to JPG or WebP to PNG. Our guide Why do images save as WebP? explains the format from the visitor’s side.
Before you upload
- Resize first. A 4000-pixel-wide photo is far too big for most web layouts even as WebP. Check its dimensions with Check Image Size.
- Strip metadata. The WebP is created from pixels, so EXIF data from the original JPG (camera, GPS location) is not copied — a bonus for privacy.
- Need a target size? For a file that must stay under a specific number of KB, Compress Image is the better tool. If a PNG photo has no transparency, PNG to JPG is another way to get a small file that opens everywhere.
Private by design
The conversion uses the browser’s built-in WebP encoder; there is no server step. Your files are never uploaded, the page sets no tracking cookies, and once loaded it keeps working offline. There is no limit set by us on the number of files.