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GRR vs LibreBooking: catalog facts
GRR	LibreBooking
Free Free and open source under the GPL-2.0 licence.	Free Free and open source under the GPL-3.0 license.
Web, Self-hosted	Web, Self-hosted
Runs on ordinary PHP and MySQL hosting Built for booking shared rooms and equipment	Waitlists, quotas and credits for reservations LDAP, Active Directory, OAuth2 and SAML sign-in
Documentation and README mainly in French Only release builds are recommended for production	Aimed at organizations rather than personal appointment booking Requires running and maintaining your own server
Self-hosted	Self-hosted
Open source	Open source
License: GPL-2.0	License: GPL-3.0
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 October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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