RawTherapee

RawTherapee is a free and open-source cross-platform application for developing raw photographs, with a non-destructive 32-bit floating-point processing engine, advanced demosaicing, colour and detail tools, batch processing and support for most camera raw formats including Pentax Pixel Shift and Canon Dual-Pixel. Available for Windows, macOS and Linux.

• Open-source alternative to: Adobe Lightroom
• Licence: GPL-3.0 (Copyleft open source)
• Website: https://www.rawtherapee.com
• Source code: https://github.com/RawTherapee/RawTherapee
• GitHub stars: 4260, forks: 428
• Topics: photography, raw editing, photo workflow, lightroom alternative, image processing, raw, rawtherapee