darktable

darktable is an open-source photography workflow application and RAW developer, released under the GPL-3.0-or-later licence. It runs on Linux, macOS and Windows and acts as a virtual lighttable for browsing and a darkroom for non-destructive editing, keeping the original RAW intact and storing edits as parameters until export. Features include a scene-referred colour workflow, GPU acceleration via OpenCL, built-in ICC profiles, RAW loading via rawspeed, HDR support and database-backed image management. Development is community-driven on GitHub with contributors worldwide; the project is free and aimed at enthusiast and pro photographers.