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Sensu vs Zabbix: catalog facts
Sensu	Zabbix
Freemium Free download, with paid plans listed on the pricing page.	Free Free and open source under the AGPL. Support and services are paid.
Windows, Linux, Self-hosted, Command line	Linux, Web, Self-hosted
Monitoring defined as code and applied with sensuctl Routes check results to alerting and automation handlers	Scales to tens of thousands of monitored devices with proxies Large template library covering common hardware and services
Aimed at operations teams rather than single desktops Some features are part of paid plans	Configuration is extensive; the learning curve is real Interface density makes simple setups feel heavy
Downloadable app, Self-hosted	Self-hosted
Closed source	Open source
License not stated	License: AGPL-3.0
No account 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 1, 2026	Official website Full listing and sources Checked September 22, 2026

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