PNG → WEBP
PNG to WEBP converter
Drop a PNG, set a quality, and get a WEBP with the same transparency and a fraction of the weight. The re-encode runs in this tab, so the artwork never leaves your machine.
Browser WEBP encoding is lossy even at quality 100, so this is not a bit-exact copy; transparency is preserved, and flat graphics want the highest setting.
How to convert PNG to WEBP
Add the PNG
Drop the file or paste it from the clipboard. Screenshots, logos and interface exports are the pictures this conversion saves most on.
Pick the quality
Start at 100 for line art and text where ringing is visible, and at 80–90 for photographs and gradients. The result reports its own size, so the other setting is one click away.
Download the WEBP
Save the file and serve it anywhere: Chrome, Edge, Firefox and Safari 14 and later all render WEBP. Keep the original PNG if you may still edit the artwork.
Why WEBP replaced PNG on the web
PNG is lossless, with a filter per row and deflate behind it, which is why it is the standard for screenshots, interface graphics and logos — and why a photograph saved as PNG is enormous. WEBP does both jobs: it compresses lossily like JPG or losslessly, carries an alpha channel, and browsers have supported it since Safari 14.
Web assets benefit most. Because the compression is lossy at ordinary settings, isolated colour and crisp text can pick up faint ringing, so keep the quality high for flat graphics and accept a smaller saving; a photograph saved as PNG shrinks dramatically by comparison. Only the browser's own encoder is used, and it writes lossy WEBP — the lossless mode is not exposed to a canvas, so nothing produced here is bit-exact.
PNG to WEBP questions
Is transparency kept when a PNG becomes a WEBP?
Yes. Unlike JPG, WEBP has a real alpha channel, and the canvas hands its transparency straight to the encoder, soft edges included. A logo on a transparent background stays that way.
Is the resulting WEBP lossless?
No, and it cannot be from a web page: the encoder browsers expose writes lossy WEBP only, so even quality 100 spends a little detail. At screen sizes the difference is invisible; for a screenshot you intend to edit repeatedly, keep the PNG.
How much smaller will the file be?
For photographs and rich gradients, often 70–90% less than the PNG, which was never the right format for them. For flat icons and simple line art the gain is smaller and follows the quality you choose.
What are the limits, and is anything uploaded?
64 MB per file, converted one at a time in this tab. Nothing is transmitted: the decode and the encode both use APIs that ship inside your browser, so the operation still completes with the network gone.