Thanos vs Zabbix

A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.

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FeatureThanosZabbix
CategoryMonitoring & StatusMonitoring & Status
LicenseApache-2.0AGPL-3.0
LanguageGoGo Template
Setup difficultyHardHard
Min. RAM1,024 MB1,024 MB
Deploymentdocker, kubernetes, helmdocker, bare-metal
GitHub stars★ 14,167★ 6,228
First released20182001
ReplacesDatadog, Grafana CloudDatadog, Nagios

Why pick each one

Choose Thanos if…

  • Scales Prometheus to massive deployments
  • Cheap long-term storage
Thanos details

Choose Zabbix if…

  • Comprehensive and mature
  • Scales to large estates
  • Fully free
Zabbix details

Frequently asked questions

Is Thanos or Zabbix better?

Neither is universally better. Thanos has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.

Are Thanos and Zabbix free and open-source?

Yes. Thanos is licensed under Apache-2.0 and Zabbix under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run Thanos and Zabbix with Docker?

Thanos: yes. Zabbix: yes.

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