JPEG XL promises to replace JPEG, PNG, and GIF in one format. Until the ecosystem catches up, convert JXL files to PNG when you need something every tool actually opens.
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Supports JXL
Supports JXL
Drop .jxl files — lossy, lossless, or losslessly re-compressed from JPEG. Animated JXL exports the first frame.
The reference JXL decoder (libjxl) compiled to WebAssembly runs in your browser tab. Lossless JXL decodes perfectly; lossy JXL decodes to the encoded quality level.
PNG output is lossless from the decoded pixels. Dimensions, bit depth (8/10-bit), and ICC profiles preserved. Alpha channel preserved for JXL files with transparency.
Convert images between these related converters
insight-to-png-reason
reference decoder, no tools required
convert JXL libraries to PNG in one session
Best-in-class compression; worst-in-class adoption
JPEG XL image coding system
Requires the JPEG XL delegate library.
Portable Network Graphics
Requires libpng-1.0.11 or later, libpng-1.2.5 or later recommended. The PNG specification does not support pixels-per-inch units, only pixels-per-centimeter. To avoid reading a particular associated image profile, use -define profile:skip=name (e.g. profile:skip=ICC).
JXL status, lossless decode, and compatibility.
