cAdvisor vs Prometheus

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?
FeaturecAdvisorPrometheus
CategoryMonitoring & StatusMonitoring & Status
LicenseApache-2.0Apache-2.0
LanguageGoGo
Setup difficultyEasyMedium
Min. RAM64 MB512 MB
Deploymentdocker, kubernetes, binarydocker, binary, helm
GitHub stars★ 19,342★ 65,616
First released20142015
ReplacesDatadogDatadog

Why pick each one

Choose cAdvisor if…

  • Zero configuration
  • Lightweight
cAdvisor details

Choose Prometheus if…

  • Powerful query language
  • Reliable and scalable
  • Huge ecosystem
Prometheus details

Frequently asked questions

Is cAdvisor or Prometheus better?

Neither is universally better. Prometheus 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 Prometheus free and open-source?

Yes. cAdvisor is licensed under Apache-2.0 and Prometheus under Apache-2.0. Both can be self-hosted at no software cost.

Can I run cAdvisor and Prometheus with Docker?

cAdvisor: yes. Prometheus: yes.

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