PNG to WebP Converter Online
Convert PNGs to WebP in your browser and shrink files dramatically while keeping transparency. Free, instant and fully private.
Convert PNG to WEBP
Drop a PNG or tap to browse
Converted on your device — the file is never uploaded.
About this converter
PNG is the worst offender for website weight: a single hero image can weigh several megabytes. WebP handles the same content at a fraction of the size and — unlike JPG — keeps full transparency, making it the ideal target for converting PNGs destined for the web.
This tool re-encodes your PNG as WebP at high quality, preserving the alpha channel exactly. Logos, icons and graphics with transparent backgrounds convert cleanly, and photographic PNGs drop to a small fraction of their original size.
The conversion is entirely in-browser. Nothing is uploaded or stored, so it is safe for unreleased designs, client work and private imagery, and it keeps working even on a flaky connection.
Why convert?
WebP keeps PNG's transparency while cutting file size by 50–80%. For websites that means faster loads, better Core Web Vitals and happier visitors on mobile data.
Tips
- Convert screenshots and UI graphics to WebP instead of PNG for the biggest wins.
- Keep original PNGs as editable masters; treat WebP as the delivery format.
- If a graphic is line art or flat colour, check the result closely — sharp edges show compression first.
- Pair conversion with a size-target page when a platform also caps kilobytes.
Common uses
- Shrinking website logos and icons that need transparency
- Replacing heavy PNG screenshots in documentation
- Preparing graphics for a performance audit
- Reducing app or PWA asset bundles
Frequently Asked Questions
Common questions about our PNG to WebP Converter tool and file processing