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.
Thanos
Highly available Prometheus setup with long-term storage
VS
Zabbix
Enterprise-grade open-source monitoring solution
| Feature | Thanos | Zabbix |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 94 · Excellent | 89 · Excellent |
| Category | Monitoring & Status | Monitoring & Status |
| License | Apache-2.0 | AGPL-3.0 |
| Language | Go | Go Template |
| Setup difficulty | Hard | Hard |
| Min. RAM | 1,024 MB | 1,024 MB |
| Deployment | docker, kubernetes, helm | docker, bare-metal |
| GitHub stars | ★ 14,214 | ★ 6,411 |
| First released | 2018 | 2001 |
| Replaces | Datadog, Grafana Cloud | Datadog, Nagios |
What are Thanos and Zabbix?
Thanos
Thanos extends Prometheus with global query view, unlimited retention, and high availability. It uses object storage to keep metrics cheaply for years while presenting a single query endpoint across many Prometheus instances.
- Global query view
- Unlimited metric retention
- Object storage backend
- Downsampling for fast queries
Zabbix
Zabbix is an enterprise-class monitoring solution for networks, servers, cloud, and applications with deep alerting. It targets organizations needing comprehensive infrastructure monitoring. It is deployed via Docker or native packages.
- Agent and agentless monitoring
- Powerful triggers and alerting
- Network discovery and maps
- Highly scalable
Thanos vs Zabbix: key differences
Thanos is written in Go, while Zabbix is built with Go Template. Licensing differs — Apache-2.0 for Thanos versus AGPL-3.0 for Zabbix. Zabbix is the more established project (first released 2001), while Thanos arrived in 2018. Thanos has the considerably larger community, at 14,214 GitHub stars versus 6,411.
Why pick each one
Choose Thanos if…
- Scales Prometheus to massive deployments
- Cheap long-term storage
Watch out for
- Complex multi-component architecture
- Steep learning curve
Choose Zabbix if…
- Comprehensive and mature
- Scales to large estates
- Fully free
Watch out for
- Steep learning curve
- Dated interface
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.