Convert PNG to WebP — Optimize Images for the Web
Serving images on a website? WebP cuts PNG sizes dramatically. Convert locally with a quality slider — no upload, no waiting.
Drop images or a folder here
HEIC, JPG, PNG, WebP, GIF, BMP · up to 100 files · 100MB each · never uploaded
🔒 Conversions run on your device. All metadata (EXIF, GPS location) is removed from the output.
Why WebP beats PNG on the web
WebP was built for the web and usually delivers images 60–90% smaller than PNG for photographic content, while still supporting transparency like PNG does. Smaller images mean faster page loads, better Core Web Vitals and less bandwidth — all of which help both users and search ranking.
WebP supports both lossy and lossless modes. For photos, a lossy WebP at high quality looks the same as the PNG at a fraction of the weight; for flat graphics you can push quality up to stay crisp.
How to convert PNG to WebP
Drop your PNGs above, choose WebP as the output, and set the quality slider to taste. Download individually or as a ZIP and drop them straight into your site or CMS.
WebP encoding uses the browser's own encoder, available in Chrome, Edge and Firefox. Safari can display WebP but not create it, so if you are on Safari the tool will let you know.
Frequently asked questions
How much smaller will my files get?
Typically 60–90% smaller than PNG for photographic content, depending on the quality setting you choose.
Does WebP keep transparency like PNG?
Yes. WebP supports an alpha channel, so transparent PNGs stay transparent after conversion.
Will every browser show my WebP images?
Yes — all current browsers display WebP. (Only very old browsers don't, and they're a rounding error of traffic today.)
Is anything uploaded?
No. Everything is converted locally in your browser.