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LibreNMS vs Observium: catalog facts
LibreNMS	Observium
Free Free and open source. Hosting, hardware and any external services are separate.	Freemium A free community edition is available. Professional and Enterprise editions are paid.
Self-hosted	Linux, Web, Self-hosted
Collects device information and performance data Provides alerting and historical graphs	Autodiscovery means devices appear with graphs and inventory automatically Clean interface that stays readable with many devices
Device visibility depends on supported protocols and credentials.	The community edition receives releases far less often than the paid one Alerting and some features are in the subscription edition
Self-hosted	Self-hosted
Open source	Closed 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 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.