png → webp
Convert PNG to WEBP and cut your image file sizes by a quarter or more.
PNG is excellent for editing and terrible for the web. A screenshot saved as PNG can weigh several megabytes; the same image as WEBP is often a quarter of that with no visible difference. This converter does the conversion in your browser using the same encoder Chrome uses, so you get exactly the quality you set and exactly the file size you see.
100% client-side — your files never leave your device
Conversion runs locally in your browser using Canvas and WebAssembly. There is no upload step, no server processing and no file storage. Disconnect from the internet and this page still works.
Drop your file here, or click to browse
Accepts .png · select many to convert in a batch
High quality — Lower values make a smaller file, higher values keep more detail.
Step by step
Drag and drop your file into the box above, or click it to browse your device. Add several at once and they convert together as a batch.
Drag the webp quality slider to trade file size against fidelity. Around 85% is visually indistinguishable from the original; lower values shrink the file further.
Click Download to save the result straight to your device. The whole process took a fraction of a second because nothing was uploaded or downloaded.
Side by side
Here is how the two formats differ. Use it to decide whether converting is worth it, and which one to pick if you have a choice.
| Attribute | PNG.png | WEBP.webp |
|---|---|---|
| Full name | PNG (Portable Network Graphics) | WEBP (Google WebP) |
| Compression | Lossless | Lossy or Lossless |
| Transparency | Yes | Yes |
| Browser support | Universal | Modern |
| Typical file size | 1.2 MB | 320 KB |
| Best for | Lossless images, logos and screenshots | Web publishing and fast page loads |
The guide
For screenshots, flat graphics and UI assets, expect 25–35% savings. For photographs, 50–80% is typical. Transparent PNGs often shrink the most because WEBP’s alpha compression is more efficient. The savings depend heavily on the default 0.85 quality: raising it to 0.95 buys a marginally sharper image at the cost of a noticeably larger file, and dropping to 0.7 will save more but start to soften fine text.
WEBP is supported by every current version of Chrome, Firefox, Edge and Safari, plus Android’s default browser. It is not supported by Safari before 14, Internet Explorer, or some very old mobile browsers. If you must support those, keep your original PNG and serve it with a WEBP fallback — but for the overwhelming majority of traffic, WEBP is safe to use everywhere.
For files you plan to archive rather than publish, keep the PNG. WEBP is a delivery format optimised for the constraints of screen displays, and there is no guarantee future software will read it. For anything going onto a website, an email or a social network, WEBP is strictly better: smaller, faster to load, and visually equivalent at 0.85 quality.
Common questions
Everything about how this converter handles your files, and how to get the best result.