JXL to WebP Converter - Convert JPEG XL to WebP Online Free

How to convert JXL to WEBP

Add your JXL files. Drop up to 50 JPEG XL files into the box, or browse for them. They are decoded in your browser - nothing is uploaded.
Lossy or lossless. Quality 85 is small and looks like the original. Lossless keeps every pixel.
Adjust if you like. Resize, change the background or rename the files. Every option starts closed and shows its value.
Convert and download. Press Convert to WebP. One or two files download directly, more than two come as a ZIP.

Have JPGs to turn into JPEG XL? JPG to JXL can do it losslessly.

JPEG XL does not show in Chrome, Edge or Firefox, so it cannot go on a website yet.

WebP stays small, keeps transparency and is shown by every modern browser.

It is the quickest way to put a JXL image online.

Going the other way? PNG to JXL and JPG to JXL. Test files are in the JXL sample files.

Websites: quality 80 and Resize to 1920 px.
Safari cannot write WebP - use Chrome, Edge or Firefox for this page.
Chrome, Edge and Firefox cannot open JPEG XL themselves - this page brings its own decoder (libjxl), so it works in every modern browser. Safari 17+ uses its built-in one.

Drop your JXL files into the box, keep quality 85 and press Convert to WebP.

Yes - in lossy and lossless WebP.

Usually a little - JPEG XL compresses better. WebP wins on browser support.

Yes - the page decodes JPEG XL itself.

No. Everything happens in your browser.

Safari can read JPEG XL but cannot write WebP on web pages yet. Use Chrome, Edge or Firefox.