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Immich vs PiGallery2: catalog facts
Immich	PiGallery2
Free Free to use with every feature; the project states nothing will be put behind a paywall…	Free Free to download and run.
Self-hosted, Web, Android, iOS	Web, Self-hosted
Automatic background backup from Android and iOS with selective album backup, album sync and Free Up Space to… Search by metadata, objects, faces and CLIP; facial recognition and clustering; reverse geocoding and a global map	Follows your existing folder layout Runs well on a Raspberry Pi
Server needs Docker with at least 6 GB RAM and 2 CPU cores (8 GB and 4 cores… The Postgres database must not sit on NTFS, exFAT or a network share and should use local SSD	Gallery rather than a full photo backup solution Needs a server to run
Self-hosted, Web application, Downloadable app	Self-hosted
Open source	Closed source
License: AGPL-3.0	License not stated
Account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.