/usr/bin/djxl

JPEG XL decoder v0.12.0 a7a9c78 [_AVX2_,SSE4,SSE2] {GNU 16.2.0}
Usage: /usr/bin/djxl INPUT OUTPUT [OPTIONS...]
 INPUT
    The compressed input file (JXL). Use '-' for input from stdin.
 OUTPUT
    The output format can be PPM, PNM, PFM, PAM, PGX, PNG, APNG, JPEG
    To extract metadata, use output format EXIF, XMP, or JUMBF.
    The format is selected based on extension ('filename.png') or can be overwritten by using --output_format.
    Use '-' for output to stdout (e.g. '- --output_format ppm')

Basic options:
 -V, --version
    Print version number and exit.
 --quiet
    Silence output (except for errors).
 -v, --verbose
    Verbose output; can be repeated and also applies to help (!).

 -h, --help
    Prints this help message. Add -v (up to a total of 2 times) to see more options.