This is an issue tracker for software with no support for JPEG XL. Check this list and the Arch Wiki for supported software.

Browsers

• Chromium - behind a flag from version 91 to 109, tracking bug
• Firefox - behind a flag since version 90, tracking bug
• Safari - supported since version 17 beta release notes, tracking bug
• Edge - behind a flag since version 91, start with .\msedge.exe --enable-features=JXL
• Opera - behind a flag since version 77.

Software

• Pillow - Python image library many projects depend on for correct rendering.
  • Ueberzug
• libgd
• VSCode

Photo editors:

• Kolourpaint
• Photopea - pending browser support.

Image viewers:

• PowerToys
• ImageGlass

Wallpapers:

• xwallpaper

Websites:

• PixelFed
• Mastodon
• Lemmy
• Wordpress

Documents:

• Libreoffice
• Marktext
• Ghostwriter

PDF:

• Ghostscript
• SumatraPDF
• Foliate

Metadata:

• Exiftool - not all metadata supported.
• libjxl - support uncompressed metadata encoding

Android

• AOSP Gallery
• Simple Gallery
• Fossify Gallery
• JPEG XL Glide plugin
• Ionut's Gallery
• Aves
• Material Files
• Amaze File Manager
• Kotatsu

Messaging apps

• Signal
• Telegram Desktop
• Matrix
• FluffyChat
• Element.io
• Telegram iOS
• Telegram Android

Misc bugs

• jxlviewer: not associated with image/jxl mimetype.

Supported

• nsxiv
• Librewolf: Enabled by default
• The Lounge