cAdvisor vs Zabbix
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
cAdvisor
Container resource usage and performance analysis
VS
Zabbix
Enterprise-grade open-source monitoring solution
| Feature | cAdvisor | Zabbix |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 96 · Excellent | 89 · Excellent |
| Category | Monitoring & Status | Monitoring & Status |
| License | Apache-2.0 | AGPL-3.0 |
| Language | Go | Go Template |
| Setup difficulty | Easy | Hard |
| Min. RAM | 64 MB | 1,024 MB |
| Deployment | docker, kubernetes, binary | docker, bare-metal |
| GitHub stars | ★ 19,440 | ★ 6,411 |
| First released | 2014 | 2001 |
| Replaces | Datadog | Datadog, Nagios |
What are cAdvisor and Zabbix?
cAdvisor
cAdvisor provides container users with an understanding of the resource usage and performance characteristics of their running containers. It exposes per-container CPU, memory, network, and filesystem metrics.
- Per-container resource metrics
- Live web UI
- Prometheus metrics export
- Auto-discovers containers
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
cAdvisor vs Zabbix: key differences
CAdvisor is written in Go, while Zabbix is built with Go Template. Licensing differs — Apache-2.0 for cAdvisor versus AGPL-3.0 for Zabbix. CAdvisor is the lighter option, starting around 64 MB of RAM against 1,024 MB for Zabbix. Zabbix is the more established project (first released 2001), while cAdvisor arrived in 2014. CAdvisor has the considerably larger community, at 19,440 GitHub stars versus 6,411.
Why pick each one
Choose cAdvisor if…
- Zero configuration
- Lightweight
Watch out for
- Limited historical retention
- Best paired with Prometheus
Choose Zabbix if…
- Comprehensive and mature
- Scales to large estates
- Fully free
Watch out for
- Steep learning curve
- Dated interface
Frequently asked questions
Is cAdvisor or Zabbix better?
cAdvisor is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Zabbix if its specific feature set fits your needs better.
Are cAdvisor and Zabbix free and open-source?
Yes. cAdvisor is licensed under Apache-2.0 and Zabbix under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run cAdvisor and Zabbix with Docker?
cAdvisor: yes. Zabbix: yes.
Which is lighter on resources, cAdvisor or Zabbix?
cAdvisor has the smaller minimum footprint at 64 MB of RAM, compared to about 1,024 MB for Zabbix. Real-world usage depends on library size, user count, and enabled features.