PNG to WebP
Convert PNG to WebP in your browser. Free, no upload, no signup.
About the PNG to WebP
PNG is Portable Network Graphics. Lossless, with full alpha transparency. Perfect for screenshots, logos, diagrams and anything with hard edges or flat colour. Large for photographs — it stores every pixel exactly, and a photograph has no repeating detail to compress.
WebP is WebP. Does both jobs: lossy like JPG but 25–35% smaller at matching quality, and lossless with transparency like PNG. Supported by every current browser. Older desktop software and some email clients still cannot open it, so it is a web format rather than a delivery format.
What changes in this conversion: PNG is lossless and WebP is not, so this conversion discards detail permanently. Keep the original if you may need to edit it later.
The whole conversion happens on a canvas in your own browser. The file is read from disk with the File API, decoded, redrawn and re-encoded locally, so it is never uploaded and there is no size limit beyond your device's memory.
How it works
Drop in a PNG file — it is read by your browser, not uploaded.
It is decoded and re-encoded as WebP on your own device.
Download the result. Nothing is stored anywhere.
Frequently asked questions
- How do I convert PNG to WebP?
- Drop your PNG file onto this page and the WebP version is produced immediately, in your browser. There is no upload, no queue and no account — the conversion runs on your own device using the canvas API.
- Does converting PNG to WebP lose quality?
- PNG is lossless and WebP is not, so this conversion discards detail permanently. Keep the original if you may need to edit it later.
- Is my PNG file uploaded to a server?
- No. The file is read by your browser, decoded and re-encoded on your device, and handed straight back. Nothing is transmitted, which matters when the image is a document, a screenshot of something private, or a photograph with location data in it.
- Why would I convert PNG to WebP?
- Does both jobs: lossy like JPG but 25–35% smaller at matching quality, and lossless with transparency like PNG. Supported by every current browser. That is usually the reason. Large for photographs — it stores every pixel exactly, and a photograph has no repeating detail to compress.
Privacy
Everything happens locally. Your files are read by your own browser, processed on your device, and never uploaded — closing the tab is all it takes to erase them.
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