darktable is an open-source photography workflow application and raw developer. A lighttable manages digital negatives in a database, and a darkroom is used to develop and enhance raw images. Editing is non-destructive: edits are stored in XMP sidecar files and the original image data is kept until export. Further features include a scene-referred colour workflow with ICC colour management, a floating-point processing core, drawn and parametric masks, Lua scripting, tethered capture and a map view for geotagged photos. It runs on Linux, macOS and Windows and is installed locally.
darktable is released under the GPL-3.0-or-later licence and developed by the darktable team as a community project; its original author is Johannes Hanika and the first release dates from 2009. There is no vendor-operated cloud service: images, catalogue database and sidecar files stay on storage you control. Because the source code is free software, a European organisation can audit, build and package it itself, without depending on a foreign parent company.