Grafana Loki vs Thanos

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

Not the right match-up?
FeatureGrafana LokiThanos
CategoryMonitoring & StatusMonitoring & Status
LicenseAGPL-3.0Apache-2.0
LanguageGoGo
Setup difficultyMediumHard
Min. RAM512 MB1,024 MB
Deploymentdocker, kubernetes, helmdocker, kubernetes, helm
GitHub stars★ 28,687★ 14,167
First released20182018
ReplacesSplunk, Datadog LogsDatadog, Grafana Cloud

Why pick each one

Choose Grafana Loki if…

  • Cheap to run compared to full-text indexers
  • Familiar Prometheus-style labels
Grafana Loki details

Choose Thanos if…

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

Frequently asked questions

Is Grafana Loki or Thanos better?

Grafana Loki 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 Loki and Thanos free and open-source?

Yes. Grafana Loki 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 Loki and Thanos with Docker?

Grafana Loki: yes. Thanos: yes.

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