JPEG XL at a glance
File extension.jxl
MIME typeimage/jxl
TransparencyYes
AnimationNo
LosslessYes
LossyYes
When should you use JPEG XL?
JPEG XL can be useful in specialised workflows. Confirm recipient and browser support before choosing it for a public web asset.
Compatibility
Imported locally with a WebAssembly decoder; exports use a standard web format.
Convert JPEG XL images locally
FreeImageKit has a local decode path for JPEG XL. Exports remove source metadata, and still-image routes do not preserve animation or extra pages.