Image Compressor
Compress JPG, PNG and WebP in your browser — no upload, quality control.
Compress
PNG to WebP Converter
Convert PNG to WebP in your browser to make images smaller for faster pages. 100% client-side with no upload, no watermark and no registration.
Drag & drop files here
or click to browse — multiple files supported
All files are processed only in your browser and are never uploaded to any server.
Quick answer
Convert PNG to WebP free in your browser to make images noticeably smaller and your pages faster — including images that need transparency. Conversion is 100% client-side, so images are never uploaded, and WebP is supported by every modern browser including Safari.
- Accepted input
- PNG
- Output format
- WebP · 92% quality (libwebp)
- Upload required
- None · files never leave your device
- Watermark
- None
- Batch conversion
- Yes · drop multiple files at once
- File size limit
- None · limited by device memory
- Price
- Free · no registration
- Works on
- Any modern browser · Windows, macOS, Linux, iOS, Android
How to use this PNG to WebP Converter
- Drag and drop your PNG file(s), or click to browse.
- Click "Convert" and watch the progress bar.
- Download the converted WEBP file(s) instantly.
PNG vs WebP for the web
PNG is lossless and universal, but it is often several times larger than WebP for the same image — and larger images mean slower pages. WebP is smaller at comparable quality and still supports transparency, which is why it is the default choice for images on modern websites.
The “WebP is not supported everywhere” advice is out of date: every current version of Chrome, Edge, Firefox and Safari renders WebP. Convert here and the image is shrunk locally in your browser with a WebAssembly WebP encoder — nothing is uploaded.
Frequently Asked Questions
Why convert to WebP?
WebP usually produces much smaller files than PNG at similar quality, which speeds up web pages.
Which browsers support WebP?
All modern browsers including Chrome, Edge, Firefox, and Safari support WebP.
Does WebP support transparency?
Yes. WebP supports an alpha channel, so you can keep transparency from a PNG while getting a much smaller file for the web.
Is PNG to WebP conversion lossless?
WebP supports both lossy and lossless modes. For the smallest files on a website, lossy WebP is usually the better choice and looks almost identical to the PNG.