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Photoview vs Piwigo: catalog facts
Photoview	Piwigo
Free Free and open source.	Freemium Self-hosted Piwigo is free; Piwigo Cloud is a paid service with a free trial.
Web, Self-hosted	Web, Self-hosted
Uses your existing folder structure as albums Multiple users with separate photo directories	Same open-source core for self-hosted and cloud versions Plugin system and API
Official iOS app is no longer maintained Requires running your own server	Self-hosting requires your own web server Paid support is separate from the free version
Self-hosted	Self-hosted, Hosted service
Open source	Open source
License: GPL-3.0	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.