How to use the png to webp converter
- Drop PNG files onto the drop zone or click to choose them.
- Set the quality. 80 to 90 keeps graphics and text looking clean.
- Click Convert, check the sizes, and download the WebP files or a ZIP.
Worked example
Screenshots and logos
Photographic PNGs usually become much smaller as WebP. Small flat-colour logos may barely change or even grow, and the tool flags any WebP that is not smaller than its PNG so you can keep the original for those.
How it works
Each PNG is decoded, drawn to a canvas without a background (so transparency is preserved) and encoded with the browser's WebP encoder at your quality setting.
Assumptions
- Browser WebP encoding is lossy at every quality setting.
Frequently asked questions
Are my files uploaded?
No. Images are processed in your browser on your own device and are never sent to our server. The page keeps working if you go offline after it loads.
Is transparency kept?
Yes. WebP supports an alpha channel, so transparent and semi-transparent areas are kept.
Is the conversion lossless?
No. Browsers encode WebP lossily from a canvas, even at quality 100. Check sharp text and line art after converting.
Do all browsers support WebP?
All current major browsers can display WebP. Saving WebP needs Chrome, Edge, Firefox or Safari 17 and later; the tool tells you if your browser cannot.
Limitations
- Images up to 50 MB each are accepted. Very large images (tens of megapixels) depend on device memory, and iPhones and iPads limit canvases to about 16.7 megapixels.
- Animated PNG (APNG) files are converted as a single frame.
- Older Safari versions cannot encode WebP.