jxl-oxide

JPEG XL image decoder for decoding .jxl image files

brewmacoslinux

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JPEG XL decoder

cjxldjxl

Decode a JPEG XL file to PNG$ djxl image.jxl image.png

Encode a PNG file to JPEG XL format$ cjxl image.png image.jxl

Decode JPEG XL with quality setting$ djxl -q 90 image.jxl output.png