An image file format that supersedes JPEG 2000. Discussed further in The JPEG XL Image Coding System. Can apparently recode standard JPEG images with 20% saving an no loss of information.
Adoption
It has relatively low support which is slowly increasing.
Needs plugins for Microsoft Windows. Not sure if IMatch will display natively even with the plugin enabled. Need to do display and metadata read/write tests.
Google Chrome browser support was dropped in 2022, but Safari added it to iOS in 2023 and Firefox natively in mid-2026. That’s not important to me as The Quantum Garden Website uses Webp as the underlying image format. I’d need fallback code for browsers that don’t support JPEG XL. That might be tricky to organise within by current Quartz build flow. Plus it means having duplicates of all images.
People prefer TIFF like Coke. It’s easier to chose without thinking about it. It may save space in Mediabank, though likely minimal impact overall with CR2 and CR3 masters being larger.