Grafana vs Thanos
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
Grafana
Open observability dashboards and visualization
VS
Thanos
Highly available Prometheus setup with long-term storage
| Feature | Grafana | Thanos |
|---|---|---|
| Deploy effort | ≈5-minute setup | Under-an-hour setup |
| Health score | 100 · Excellent | 94 · Excellent |
| Category | Monitoring & Status | Monitoring & Status |
| License | AGPL-3.0 | Apache-2.0 |
| Language | TypeScript | Go |
| Setup difficulty | Medium | Hard |
| Min. RAM | 512 MB | 1,024 MB |
| Deployment | docker, bare-metal, helm | docker, kubernetes, helm |
| GitHub stars | ★ 76,876 | ★ 14,214 |
| First released | 2014 | 2018 |
| Replaces | Datadog | Datadog, Grafana Cloud |
What are Grafana and Thanos?
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
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
Grafana vs Thanos: key differences
Grafana is written in TypeScript, while Thanos is built with Go. Licensing differs — AGPL-3.0 for Grafana versus Apache-2.0 for Thanos. Grafana is the lighter option, starting around 512 MB of RAM against 1,024 MB for Thanos. Grafana is the more established project (first released 2014), while Thanos arrived in 2018. Grafana has the considerably larger community, at 76,876 GitHub stars versus 14,214.
Why pick each one
Choose Grafana if…
- Beautiful flexible dashboards
- Broad data source support
- Strong community
Watch out for
- Not a data store itself
- Alerting can be complex
Choose Thanos if…
- Scales Prometheus to massive deployments
- Cheap long-term storage
Watch out for
- Complex multi-component architecture
- Steep learning curve
Frequently asked questions
Is Grafana or Thanos better?
Grafana is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Thanos if its specific feature set fits your needs better.
Are Grafana and Thanos free and open-source?
Yes. Grafana is licensed under AGPL-3.0 and Thanos under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Grafana and Thanos with Docker?
Grafana: yes. Thanos: yes.
Which is lighter on resources, Grafana or Thanos?
Grafana has the smaller minimum footprint at 512 MB of RAM, compared to about 1,024 MB for Thanos. Real-world usage depends on library size, user count, and enabled features.