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7/22/2026
Free Self-Hosted Alternatives to Datadog: What Actually Works on Your Own Hardware

Free Self-Hosted Alternatives to Datadog: What Actually Works on Your Own Hardware

Short summary

A detailed comparison of five self-hosted monitoring alternatives to Datadog, focusing on real resource costs and practical tradeoffs. Covers Prometheus+Grafana, VictoriaMetrics, and Netdata with Docker Compose setup guidance and a decision framework for matching tools to your situation. Includes honest assessment of memory usage, cardinality pitfalls, and common failure modes.

  • •Datadog's per-host pricing scales faster than infrastructure; self-hosting avoids sending telemetry to third parties
  • •Prometheus+Grafana is composable but RAM-hungry at high cardinality; VictoriaMetrics is a leaner drop-in; Netdata offers zero-config alerting
  • •Decision framework helps match tool choice to cluster size and workload sensitivity

Generated with AI, which can make mistakes.

#ai-tools#open-source
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