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
3 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
XnView MP, RAW development and camera profiles: Opens RAW files with basic adjustments; no raw develop controls
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
XnView MP, Presets and batch settings sync: Batch conversion with saved settings
darktable, Tethered capture and print: Tethered shooting and printing through CUPS; no book module
LightCraft, Tethered capture and print: Print and book modules are not started
digiKam, Tethered capture and print: Camera capture and a print creator; no book module
darktable, Catalog with keywords, collections and metadata: Library database with tags, ratings, color labels and collections
RawTherapee, Catalog with keywords, collections and metadata: File browser with ratings, labels and filters; no catalog database
ART, Catalog with keywords, collections and metadata: File browser with ratings and labels; no catalog database
LightCraft, Catalog with keywords, collections and metadata: Albums, smart albums, stacks, ratings and filters
digiKam, Catalog with keywords, collections and metadata: Albums, tags, ratings, face recognition and duplicate search in a database
XnView MP, Catalog with keywords, collections and metadata: Browser with ratings, labels, keywords and XMP editing; no editing catalog
RawTherapee, Batch export and watermarks: Queue-based batch export
ART, Batch export and watermarks: Queue-based batch export
LightCraft, Batch export and watermarks: JPEG, PNG, TIFF, WebP, AVIF and DNG with batch export and watermarks
digiKam, Batch export and watermarks: Batch export and export to web services
XnView MP, Batch export and watermarks: Batch convert to about 70 formats
Not covered by any free alternative yet: AI masks: subject, sky and background, AI Denoise, Spot healing and Generative Remove, Tethered capture and print. See all feature gaps
File formats
Can each alternative open and save Adobe Lightroom Classic files?