RawTherapee

RawTherapee is a free, cross‑platform program for developing raw image files from a wide range of digital cameras. It offers a 32‑bit floating‑point processing engine with modern demosaicing algorithms, allowing non‑destructive editing and high‑dynamic‑range handling, including support for DNG and pixel‑shift RAW files. The software provides extensive color and detail adjustment tools, as well as features such as dark‑frame subtraction, flat‑field correction, and hot/dead pixel removal.

The application targets both enthusiastic newcomers who want to learn digital imaging concepts and professional photographers who need precise control over image quality. Its user community supplies documentation, forums, and a knowledge base to help users explore its capabilities. RawTherapee runs on Linux, macOS, and Windows, and its interface is available in more than fifteen languages.

Released under the GPLv3 license, the source code can be freely modified and redistributed. Regular releases add improvements and maintain compatibility with new camera models, while the open‑source nature encourages contributions from the community.