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Zabbix vs Observium: catalog facts
Zabbix	Observium
Free Free and open source under the AGPL. Support and services are paid.	Freemium A free community edition is available. Professional and Enterprise editions are paid.
Linux, Web, Self-hosted	Linux, Web, Self-hosted
Scales to tens of thousands of monitored devices with proxies Large template library covering common hardware and services	Autodiscovery means devices appear with graphs and inventory automatically Clean interface that stays readable with many devices
Configuration is extensive; the learning curve is real Interface density makes simple setups feel heavy	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: AGPL-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.