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PiGallery2 vs Piwigo: catalog facts
PiGallery2	Piwigo
Free Free to download and run.	Freemium Self-hosted Piwigo is free; Piwigo Cloud is a paid service with a free trial.
Web, Self-hosted	Web, Self-hosted
Follows your existing folder layout Runs well on a Raspberry Pi	Same open-source core for self-hosted and cloud versions Plugin system and API
Gallery rather than a full photo backup solution Needs a server to run	Self-hosting requires your own web server Paid support is separate from the free version
Self-hosted	Self-hosted, Hosted service
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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