darktable vs Radiant Photo

darktable is a free photography workflow application for organizing digital negatives and developing raw images. It stores images in a database and provides a zoomable lighttable, while its editing leaves original files unchanged. It imports standard, raw and high dynamic range formats such as JPEG, CR2, NEF, HDR, PFM and RAF. Color tools include automatic display-profile detection on most systems and built-in ICC profiles for sRGB, Adobe RGB, XYZ and linear RGB. Many operations can use OpenCL GPU acceleration, and tethered shooting with live view is supported for some camera brands. Exports include disk storage, email attachments, Piwigo webalbums and HTML-based galleries; many aspects can also be scripted in Lua. Optional AI tools cover object masking, denoising and upscaling, but the Flatpak release does not include them as of September 2026. Downloads are available for Windows, macOS and Linux/Unix options. macOS bundles require version 13.5 or later. The project notes that the learning curve can be steep.

Radiant Photo has no write-up on Specifiction yet; its figures are above.