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A Photo Tool (Libre)darktable
Free

Free to download and use under the GPLv3.

 Free

Free and open source, funded by donations.

Linux Windows, macOS, Linux
  • Straightforward exposure and color adjustments
  • Custom black-and-white conversion
  • Fully non-destructive: your original raw file is never modified
  • Professional colour management maintained all the way through to print
  • Limited file format support beyond JPEG
  • No layers or advanced retouching
  • The project itself says it is not a free Adobe Lightroom replacement
  • A steep learning curve; the module list assumes you know the underlying concepts
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: GPL-3.0
Not stated if an account is needed No account needed
Works offline Works offline

Checked October 1, 2026

Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.