Linux · Graphics & Design
Light Matter
Light Matter is an HDR image and photo viewer for Windows and Linux. It features a simple and intuitive UI, photo browser with customisable locations, support…
by Auxx
Official site: github.com
About Light Matter
Light Matter is an HDR image and photo viewer for Windows and Linux.
It features a simple and intuitive UI, photo browser with customisable locations,
support for both High Dynamic Range (HDR) and Standard Dynamic Range (SDR) images,
wide colour gamut, and ICC profiles.
Supported image formats: JPEG, JPEG UltraHDR, JPEG XL, AVIF, PNG, WebP, GIF.
Supported colour gamuts: sRGB, AdobeRGB, P3, BT.2020/BT.2100, custom colour primaries.
Supported HDR EOTF: PQ (SMPTE ST 2084), HLG (ARIB STD-B67).
How to install Light Matter
- Click Download — the project's official release page opens in a new tab.
- Download the latest .AppImage file.
- Make it executable: right-click › Properties › Permissions › Allow executing as program, or run chmod +x the-file.AppImage in a terminal.
- Double-click the file to run Light Matter — there's nothing to install, and you can delete the file to remove it.
Frequently asked questions
Is Light Matter free to download?
Yes. The Download button sends you to github.com, the developer's official site, where Light Matter is available to download. Appimo doesn't host or modify any files.
Is Light Matter safe?
Light Matter downloads directly from the developer. As always, scan the installer with your antivirus and choose Custom setup to skip any bundled extras.