RawTherapee
Powerful open-source tool for developing raw photos with advanced features and high image quality. Supports Linux, macOS, and Windows.
RawTherapee is an open-source alternative to:
Overview
RawTherapee is a free, cross-platform raw image processing program designed for enthusiasts and professionals. It provides a non-destructive, 32-bit floating point processing engine with modern demosaicing algorithms and advanced color+detail editing tools.
Key Features
- High Image Quality: Non-destructive 32-bit processing engine with modern demosaicing algorithms
- Outstanding Raw Support: Best-in-class demosaicing, pixel-shift raw file compositing, dark frame subtraction, and hot/dead pixel correction
- Cross-Platform: Available on Linux, macOS, and Windows
- Multi-Language Support: Available in over 15 languages
- Community Driven: Active forum and documentation (RawPedia) for learning and support
- Open Source: Released under GPRv3 license, allowing modification and redistribution
- Advanced Tools: Includes High Dynamic Range DNG support, flat field correction, and ghost masking
Tech / Self-Hosting
RawTherapee is a desktop application that runs locally on your machine. It does not require a server or internet connection for core functionality. The source code is available on GitHub for self-hosting modifications or custom builds.