JPG to WebP Converter
Convert JPG — the format everything can open — into WebP, small files, supported everywhere on the web. Runs entirely in your browser.
Why convert JPG to WebP?
This is the standard step before putting a photograph on a website. WebP at a sensible quality gives you a file around a quarter to a third smaller than the equivalent JPEG with no visible difference, and every browser released in the last several years displays it natively.
What changes when JPG becomes WebP
Lossy WebP at quality 80. Because the JPEG was already lossy this is a second generation — in practice invisible for a single hop, but not something to repeat back and forth. EXIF and colour profile carry through, so photo dates and camera details survive.
Why this one is different
Every other JPG to WebP converter uploads your files to their server, which is why they cap file sizes and ask you to sign up. This one does the work on your own machine, so it can afford not to.
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Questions
How do I convert JPG to WebP?
Drop your JPG files onto the box above and each one is converted to WebP straight away. Then download the results, individually or together as a ZIP. There is no upload step and no account.
How much smaller is WebP than JPEG?
Commonly 25 to 35 per cent for the same perceived quality on photographs. The gap is widest on smooth material like skies and skin, and narrowest on noisy, highly detailed images.
Should I keep the JPEGs as well?
Yes, if they are your originals. This is a lossy re-encode: the WebP is for serving, and the JPEG stays as the master copy.
Do my files get uploaded anywhere?
No. Everything happens in this tab. Your files are never sent to a server, which is why this still works if you disconnect from the network after the page has loaded.