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Barman vs WAL-G: catalog facts
Barman	WAL-G
Free Free and open source under the GPL.	Free Free and open source under the Apache licence.
Linux, Command line	Linux, Command line
Manages many PostgreSQL servers from a single backup host Point-in-time recovery with retention policies and WAL archiving	Streams straight to object storage with compression and encryption Delta backups keep repeated full backups cheap
PostgreSQL only, Linux only Requires SSH or streaming access to every managed server	Command-line only and closely tied to object storage MongoDB and Redis support is still beta
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: Apache-2.0
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 September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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