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A Photo Tool (Libre)LightZone
Free

Free to download and use under the GPLv3.

 Free

Free and open source under the BSD-3-Clause licence.

Linux Windows, macOS, Linux
  • Straightforward exposure and color adjustments
  • Custom black-and-white conversion
  • Processes camera RAW files
  • Runs on Windows, macOS and Linux
  • Limited file format support beyond JPEG
  • No layers or advanced retouching
  • Smaller community than better-known RAW developers
  • Documentation lives mainly in the repository
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: BSD-3-Clause
Not stated if an account is needed No account needed
Works offline Works offline

Checked October 1, 2026

Checked October 1, 2026

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