Convert PNG to WebP
Migrate PNG assets to Google's modern, lightweight WebP format. Runs entirely in your browser, so your data never leaves your device.
Drop a file here, or click to browse
Files never leave your device
Output
The result appears here as you type.
How to use Convert PNG to WebP
- 1. Drop in your PNG. Add the image you want to shrink for the web, such as a banner, photo, or graphic currently taking up more bytes than needed.
- 2. Set the Quality (%) slider. Lower the quality for smaller file sizes with more compression artifacts, or keep it high to preserve detail at the cost of a larger output.
- 3. Download the WebP file. The tool re-encodes your image into WebP at the chosen quality, typically producing a noticeably smaller file than the original PNG.
When to use Convert PNG to WebP
Convert PNG to WebP migrates an image to Google's modern format, which usually compresses better than PNG while still supporting transparency. Use it whenever page weight matters and your audience's browsers support WebP, which covers nearly all modern ones.
- Speeding up a marketing page. A landing page loads dozens of PNG banners and screenshots, and converting them to WebP at a moderate quality setting cuts total page weight significantly.
- Meeting a Lighthouse performance target. A site audit flags large PNG images as a performance bottleneck, and converting them to WebP is often the fastest fix for that specific warning.
- Reducing storage on an image CDN. An app stores thousands of user-uploaded PNG avatars, and converting new uploads to WebP reduces the storage and bandwidth costs at scale.
Examples
Web-friendly conversion
Input
banner.png (1.4 MB)
Output
banner.webp, typically smaller
About the Convert PNG to WebP tool
Convert PNG to WebP does its work locally, right in the browser. Migrate PNG assets to Google's modern, lightweight WebP format. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the PNG Tools collection on EditSafely, a set of 108 small, focused PNG utilities that share the same instant, private workspace.
You can shape the output with the Quality (%) setting, and the result refreshes the moment you change it. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Is Convert PNG to WebP free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Are my files uploaded to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
Which files does Convert PNG to WebP accept?
It accepts PNG images. There is no file size cap imposed by a server; very large files are limited only by your device's memory.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.