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TL;DR - Prometheus
- Prometheus is an open-source monitoring system with a time-series database
- It collects metrics, provides alerting, and powers Grafana dashboards
- Completely free and open-source
Pricing: Free forever
Best for: Individuals & startups
Score: 88/100
Pros & Cons
Pros
- Industry standard
- Great for metrics
- Open source
Cons
- Long-term storage
- Learning curve
Key Features
MonitoringTime seriesPromQLAlertingCNCFOpen source
Pricing Plans
Most Popular
Free
Free
Open source
- Time series DB
- PromQL
- Alerting
- Service discovery
About Prometheus
By Toolradar Team·
Prometheus is an open-source monitoring and alerting toolkit designed for reliability. Pull-based metrics collection scales to thousands of targets. Powerful query language PromQL enables flexible analysis. Built-in alerting with Alertmanager integration. CNCF graduated project used by enterprises worldwide. The standard for metrics monitoring in cloud-native environments.
Reviews
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Prometheus FAQ
Is Prometheus free?
Yes, open-source under Apache 2.0.
Source: prometheus.io