CR3CR3: opens only, partial fidelity. Support depends on the LibRaw version in your build
NEFNEF: opens only, full fidelity
ARWARW: opens only, full fidelity
A fork of RawTherapee with a simpler interface, free on Windows, macOS and Linux. Builds for Windows and macOS are linked from its site rather than hosted on a store.
Situational
2 tools
Right for specific needs, or not yet mature enough to recommend widely.
darktable, RAW development and camera profiles: Scene-referred pipeline, camera profiles and lens correction
RawTherapee, RAW development and camera profiles: Several demosaic methods, camera profiles and lens correction
ART, RAW development and camera profiles: Uses the RawTherapee engine with fewer controls
LightCraft, RAW development and camera profiles: DNG, NEF and ARW develop; other raws use a neutral color matrix and CR3 opens as a preview
digiKam, RAW development and camera profiles: Raw import with basic corrections; fewer editing tools than Lightroom
darktable, AI Denoise: Neural restore for denoise and upscale arrived in 5.6, optional and off by default
RawTherapee, AI Denoise: Manual noise reduction methods; no AI denoise
ART, AI Denoise: AI denoise only through external tools
LightCraft, AI Denoise: AI Denoise is not started
digiKam, AI Denoise: Noise reduction in the image editor
darktable, AI masks: subject, sky and background: Drawn and parametric masks; an optional AI object mask arrived in 5.6
RawTherapee, AI masks: subject, sky and background: Selective Editing spots with parametric masks; no AI subject selection
ART, AI masks: subject, sky and background: Drawn and parametric masks; AI masking only through external tools
LightCraft, AI masks: subject, sky and background: Brush, linear, radial and range masks; subject and sky use classical heuristics
darktable, Spot healing and Generative Remove: Retouch and spot removal modules; no generative remove
RawTherapee, Spot healing and Generative Remove: Dust and spot removal through Selective Editing, less direct than a dedicated tool
ART, Spot healing and Generative Remove: No spot healing tool is listed in its documentation
LightCraft, Spot healing and Generative Remove: Heal and clone spots; content-aware fill is in progress
digiKam, Spot healing and Generative Remove: Inpainting and a healing clone tool in the editor
darktable, Presets and batch settings sync: Styles, presets and copy or paste of edit history
RawTherapee, Presets and batch settings sync: Processing profiles you copy or apply in batch
ART, Presets and batch settings sync: Presets and batch processing
LightCraft, Presets and batch settings sync: Presets, versions and copy or paste of settings
digiKam, Presets and batch settings sync: Batch Queue Manager runs tool chains; there are no develop presets
darktable, Albums, ratings, keywords and smart search: Collections, tags, ratings and filters; no AI content search
RawTherapee, Albums, ratings, keywords and smart search: File browser with ratings, labels and filters; no catalog or albums
ART, Albums, ratings, keywords and smart search: File browser with ratings and labels; no catalog or albums
LightCraft, Albums, ratings, keywords and smart search: Albums, smart albums, stacks, ratings and filters
digiKam, Albums, ratings, keywords and smart search: Albums, tags, ratings, face recognition and duplicate search
darktable, Cloud sync across desktop, mobile and web: No cloud sync or mobile apps
RawTherapee, Cloud sync across desktop, mobile and web: No cloud sync or mobile apps
ART, Cloud sync across desktop, mobile and web: No cloud sync or mobile apps
LightCraft, Cloud sync across desktop, mobile and web: No cloud sync
digiKam, Cloud sync across desktop, mobile and web: Exports to web services, but no sync across devices
RawTherapee, Batch export and sharing: Queue-based batch export
ART, Batch export and sharing: Queue-based batch export
LightCraft, Batch export and sharing: JPEG, PNG, TIFF, WebP, AVIF and DNG with batch export
digiKam, Batch export and sharing: Batch export and export to web services
Not covered by any free alternative yet: AI masks: subject, sky and background, AI Denoise, Spot healing and Generative Remove, Cloud sync across desktop, mobile and web. See all feature gaps
File formats
Can each alternative open and save Adobe Lightroom files?