Prometheus
Open source metrics and alerting system
3.9(70 reviews)free
free tieropen sourceself hostable
Prometheus is the leading open source metrics monitoring system. Pull-based metrics collection, PromQL query language, and Alertmanager. Kubernetes-native. Self-hosted with integrations for 200+ services.
Pros
- Free and open source — industry standard
- Kubernetes-native design
- PromQL powerful query language
Cons
- Requires self-hosting infrastructure
- Long-term storage needs additional solution (Thanos/Cortex)
Best For
DevOps teams who want the Kubernetes-native open source metrics standard they fully control
Pricing
Free Forever
Free
- Core features included
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