Operating Systems
And more
Qt / KDE: plugin available
GDK-pixbuf: plugin available in libjxl repo
gThumb
MacOS Viewer/QuickLook Plugin
Windows Imaging Component
Windows Thumbnail Handler
EFL (supported since 1.27, no external plugin needed)
GDK-pixbuf: plugin available in libjxl repo
gThumb
MacOS Viewer/QuickLook Plugin
Windows Imaging Component
Windows Thumbnail Handler
EFL (supported since 1.27, no external plugin needed)
Browser Support
For all browsers and to track browsers progress see Can I Use.
Image Editors
And more
Graphic Converter (since 11.5)
XL Converter
Image Toolbox (supported since 2.6.0)
Paint.NET; supported since 4.3.12 - requires a plugin to be downloaded and installed.
Photoshop: no plugin available yet, no official support yet
JPEG XL Toolbox by SUIKA LTD
RawTherapee (since 5.11); Currently only opening of JXL files is supported. Exporting is expected for the 6.0 release
Photopea Supports importing, a plugin is required for exporting.
XL Converter
Image Toolbox (supported since 2.6.0)
Paint.NET; supported since 4.3.12 - requires a plugin to be downloaded and installed.
Photoshop: no plugin available yet, no official support yet
JPEG XL Toolbox by SUIKA LTD
RawTherapee (since 5.11); Currently only opening of JXL files is supported. Exporting is expected for the 6.0 release
Photopea Supports importing, a plugin is required for exporting.
Image Libraries
And more
libvips (supported since 8.11)
Imlib2
Graphics Magick (supported since 1.3.38)
SAIL (supported since 0.9.0)
JPEG XL Coder (supports version from Android 5.0 - API Level 21)
SDWebImage JPEGXL Coder (supported since 0.1.0)
Imlib2
Graphics Magick (supported since 1.3.38)
SAIL (supported since 0.9.0)
JPEG XL Coder (supports version from Android 5.0 - API Level 21)
SDWebImage JPEGXL Coder (supported since 0.1.0)
Additional Categories
Metadata Manipulation Libraries
ExifTool by Phil Harvey (supported since 12.25)
Exiv2 (supported since 0.27.4)
Ashampoo Kim (supported since 0.10)
Exiv2 (supported since 0.27.4)
Ashampoo Kim (supported since 0.10)
Online Tools
Cloud-based Image Delivery Platforms
Image Viewers
Aspect
ImageGlass
IrfanView (supported since 4.59 - requires a plugin to be downloaded and enabled)
jpegview
Swayimg
Mihon
XnView
Any viewer based on Qt, KDE, GDK-pixbuf, EFL, ImageMagick, libvips or imlib2 (see above)
Qt viewers: gwenview, digiKam, KolourPaint, KPhotoAlbum, LXImage-Qt, qimgv, qView, nomacs, VookiImageViewer, PhotoQt
GTK viewers: Eye of Gnome (eog), gThumb, Geeqie
EFL viewers: entice, ephoto
ImageGlass
IrfanView (supported since 4.59 - requires a plugin to be downloaded and enabled)
jpegview
Swayimg
Mihon
XnView
Any viewer based on Qt, KDE, GDK-pixbuf, EFL, ImageMagick, libvips or imlib2 (see above)
Qt viewers: gwenview, digiKam, KolourPaint, KPhotoAlbum, LXImage-Qt, qimgv, qView, nomacs, VookiImageViewer, PhotoQt
GTK viewers: Eye of Gnome (eog), gThumb, Geeqie
EFL viewers: entice, ephoto
Duplicate Image Finders