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Prometheus

Open-source systems monitoring and alerting toolkit built for reliability.

Free and open-source (Apache 2.0)

Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. It collects metrics via pull model, stores them in a time-series database, and supports PromQL for querying. Features include alerting via Alertmanager, service discovery, and federation. The standard for Kubernetes monitoring.

  • Best for: Monitoring & Observability
  • Pricing: Free and open-source (Apache 2.0)

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Features

Alerting

Threshold and anomaly-based alerting

Dashboards

Visual dashboards for metrics and logs

Full-Stack APM

Application performance monitoring with traces, logs, and metrics

Horizontal Scaling

Scale out across nodes and regions

Integrations

Native integrations with other tools

Log Aggregation

Centralized log collection and search

Metrics

Time-series metric collection and storage

Multi-Tenancy

Isolation between teams and environments

Query Language

Custom query language for data analysis

Storage Backends

Flexible storage options (S3, local, cloud)

Best For

Find the right DevOps tools for your specific needs. Prometheus is featured in these buying guides:

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