cAdvisor vs Grafana
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
Grafana
Open observability dashboards and visualization
| Feature | cAdvisor | Grafana |
|---|---|---|
| Deploy effort | Under-an-hour setup | ≈5-minute setup |
| Health score | 96 · Excellent | 100 · Excellent |
| Category | Monitoring & Status | Monitoring & Status |
| License | Apache-2.0 | AGPL-3.0 |
| Language | Go | TypeScript |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 512 MB |
| Deployment | docker, kubernetes, binary | docker, bare-metal, helm |
| GitHub stars | ★ 19,440 | ★ 76,876 |
| First released | 2014 | 2014 |
| Replaces | Datadog | Datadog |
What are cAdvisor and Grafana?
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
Grafana
Grafana is an open-source analytics and visualization platform that builds dashboards from many data sources. It targets operators and analysts who need rich observability dashboards. It is deployed via Docker, packages, or Helm.
- Dashboards from many data sources
- Alerting and annotations
- Large plugin ecosystem
- Templating and variables
cAdvisor vs Grafana: key differences
CAdvisor is written in Go, while Grafana is built with TypeScript. Licensing differs — Apache-2.0 for cAdvisor versus AGPL-3.0 for Grafana. CAdvisor is the lighter option, starting around 64 MB of RAM against 512 MB for Grafana. Grafana has the considerably larger community, at 76,876 GitHub stars versus 19,440.
Why pick each one
Choose cAdvisor if…
- Zero configuration
- Lightweight
Watch out for
- Limited historical retention
- Best paired with Prometheus
Choose Grafana if…
- Beautiful flexible dashboards
- Broad data source support
- Strong community
Watch out for
- Not a data store itself
- Alerting can be complex
Frequently asked questions
Is cAdvisor or Grafana better?
Neither is universally better. Grafana has the larger community, while cAdvisor is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are cAdvisor and Grafana free and open-source?
Yes. cAdvisor is licensed under Apache-2.0 and Grafana under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run cAdvisor and Grafana with Docker?
cAdvisor: yes. Grafana: yes.
Which is lighter on resources, cAdvisor or Grafana?
cAdvisor has the smaller minimum footprint at 64 MB of RAM, compared to about 512 MB for Grafana. Real-world usage depends on library size, user count, and enabled features.