cjxl
Compress images to JPEG XL.
TLDR
Convert an image to JPEG XL
$ cjxl [path/to/image.ext] [path/to/output.jxl]
Set quality to lossless and maximize compression of the resulting image
$ cjxl --distance 0 --effort 9 [path/to/image.ext] [path/to/output.jxl]
Display an extremely detailed help page
$ cjxl --help --verbose --verbose --verbose --verbose
