DisplayCAL
Display calibration and profiling with a focus on accuracy and versatility
Florian Höch, Erkan Özgür Yılmaz, Patrick Zwerschke
net.displaycal.DisplayCALCalibrate and characterize your display devices using one of many supported measurement instruments, with support for multi-display setups and a variety of available options for advanced users, such as verification and reporting functionality to evaluate ICC profiles and display devices, creating video 3D LUTs, as well as optional CIECAM02 gamut mapping to take into account varying viewing conditions.
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Observed history
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Release notes supplied by the developer. These dates are not Flathub package publication times.
3.9.1914 Jul 2026
Fixed in this release:
- [Enhancement] Added Python 3 support. DisplayCAL now works with Python...
- [Enhancement] Dropped Python 2.x support. DisplayCAL will not work with P...
- [Enhancement] Dropped 32bit support. DisplayCAL is now working only in 64...
Release highlights since 2022-04-01:
2025-04-02 - DisplayCAL 3.9.15
- [Moderate] Windows startup and executable launch reliability fixes, inclu...
- [Minor] macOS splash-screen rendering fix and improved Windows installer/...
- [Moderate] Stability fixes for profile loader and 3D view/reporting edge...
- [Enhancement] Dropped Python 3.8 support and aligned project metadata/bui...
- [Enhancement] Package naming and CI workflow improvements for more reliab...
- [Moderate] Fixed recursion and menu-flow issues around ArgyllCMS detectio...
- [Moderate] Corrected black point correction handling so the -b argument f...
- [Enhancement] Added support for ArgyllCMS 3.4 observer naming updates (CI...
- [Moderate] Startup and runtime reliability fixes, including UTF-8 decode...
- [Enhancement] Ongoing Python 3.14 compatibility and packaging modernizati...
- [Enhancement] Expanded ArgyllCMS compatibility work for 3.5.0, including...
- [Minor] Broad linting, refactoring, and translation/documentation mainten...
- [Moderate] Improved Web @ localhost reliability and responsiveness: fixed...