Facet vs Tack

Facet is a free, local tool for scoring, culling, organizing, and serving a web gallery for photo libraries. It runs on the user's machine without cloud services, accounts, or API keys. Its scoring evaluates nine dimensions, including aesthetic quality, composition, sharpness, color, exposure, face quality, subject saliency, and dynamic range. It detects bursts, similar photos, blinks, and duplicates, with a dry-run preview for automatic culling. The gallery includes natural-language semantic search, filters, timeline and map views, albums, and themed slideshows. Face tools group people and support searching, renaming, merging, and organizing clusters. XMP sidecars provide metadata interoperability with Lightroom, Capture One, digiKam, and darktable. Users can send photos to a WebDAV inbox, or share revocable album links that need no recipient login; proofing supports hearts and comments, with an optional PIN. Core functions work on CPU, while an NVIDIA GPU unlocks additional models and features. Facet can be installed with Docker or natively on Linux and macOS, requires Python, and does not provide RAW editing or development.

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