PNG to WebP Converter
Convert PNG images into smaller, modern WebP files. 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 PNG to WebP Converter
- 1. Add your PNG file. Select or drag a PNG image into the tool. It decodes locally, so large source files load instantly without a network round trip.
- 2. Adjust the WebP quality. Move the Quality slider to balance file size against visual fidelity. WebP's compression is more efficient than JPG's at the same setting, so you can often go lower than you'd expect and still look sharp.
- 3. Save the WebP result. Download the .webp file once the preview looks right. Transparency in the original PNG is preserved, unlike a JPG conversion, since WebP supports an alpha channel.
When to use PNG to WebP Converter
PNG to WebP Converter re-encodes a PNG into WebP, a format built for the modern web that typically produces files 25 to 50 percent smaller than an equivalent PNG or JPG. Use it whenever page load speed matters more than universal compatibility with older tools.
- Speeding up a website's hero image. Your site's Lighthouse score flags a 900 KB PNG banner as a render-blocking asset. Converting it to WebP at 80% quality often halves the payload while keeping the image visually identical to visitors.
- Serving transparent logos efficiently. A logo with a transparent background needs to stay crisp but load fast on a product page. WebP keeps the alpha channel from the PNG while shrinking the file more than PNG's own compression can.
- Preparing assets for a static site build. A documentation site's build pipeline expects WebP images in its assets folder. Converting exported PNG diagrams here before committing keeps the repository and the deployed bundle smaller.
Examples
Format conversion
Input
sample.png
Output
sample.webp
About the PNG to WebP Converter tool
PNG to WebP Converter does its work locally, right in the browser. Convert PNG images into smaller, modern WebP files. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Image Tools collection on EditSafely, a set of 200 small, focused Image 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
Does PNG to WebP Converter cost anything?
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?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
Which files does PNG to WebP Converter 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?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
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.