Logstash 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?
FeatureLogstashPrometheus
CategoryMonitoring & StatusMonitoring & Status
LicenseApache-2.0Apache-2.0
LanguageJavaGo
Setup difficultyMediumMedium
Min. RAM1,024 MB512 MB
Deploymentdocker, kubernetes, binarydocker, binary, helm
GitHub stars★ 14,912★ 65,616
First released20092015
ReplacesFluentdDatadog

Why pick each one

Choose Logstash if…

  • Powerful transformation language
  • Huge plugin library
Logstash details

Choose Prometheus if…

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

Frequently asked questions

Is Logstash or Prometheus better?

Neither is universally better. Prometheus has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are Logstash and Prometheus free and open-source?

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

Can I run Logstash and Prometheus with Docker?

Logstash: yes. Prometheus: yes.

Related comparisons