PropertyJPEGJPEG XL
Extension.jpg.jxl
MIME typeimage/jpegimage/jxl
TransparencyNoYes
AnimationNoYes
Lossless modeNoYes
Lossy modeYesYes
Practical recommendation
Keep JPEG for delivery and sharing today, and consider JPEG XL for archives or controlled environments after checking current support.
Frequently asked questions
What is special about JPEG XL?
It offers better compression than JPEG and can losslessly recompress existing JPEG files.
Can I use JPEG XL today?
Browser and app support is still uneven. Keep JPEG for delivery and sharing, and check current support before relying on JPEG XL.
Can I open a JPEG XL file?
Yes. FreeImageKit's JPEG XL to PNG converter decodes it in your browser and exports a standard PNG.
Read the format guides
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