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Netdata

Netdata is a GPL-3.0 real-time monitoring agent with per-second metrics, auto-discovery, ML-based anomaly detection and zero-configuration dashboards, plus Netdata Cloud.

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Introduction

Netdata markets itself as the fastest path to AI-powered full-stack observability, even for lean teams. The open-source agent collects thousands of metrics per second with auto-discovery, stores them locally and serves dashboards out of the box, with machine-learning anomaly detection on every metric. Netdata Cloud adds a central view.

The source code is at netdata/netdata on GitHub under the GPL-3.0 licence, with about 81,400 stars; the most recent commit was on 11 November 2026.

Features

  1. Per-second metrics: High-resolution data.
  2. Auto-discovery: Collectors detect services automatically.
  3. Anomaly detection: ML per metric.
  4. Alerts: Preconfigured health alarms.
  5. Netdata Cloud: Multi-node dashboards; paid tiers.

Pros

  1. Free to use: Open source under GPL-3.0.
  2. Maintained: Commits as recent as 11 November 2026.
  3. Community: About 81,400 GitHub stars.

Cons

  1. GPL-3.0 agent: Check licence if redistributing.
  2. Cloud features paid: Some capabilities need Netdata Cloud plans.
curl https://get.netdata.cloud/kickstart.sh > /tmp/netdata-kickstart.sh && sh /tmp/netdata-kickstart.sh

Then open http://localhost:19999.

Resources:

Pricing

The agent is free and open source (GPL-3.0); Netdata Cloud has free and paid plans, see site.

  1. Teams wanting instant dashboards with no configuration.
  2. Performance testers watching servers at per-second resolution.
  3. Not a fit for long-term metrics storage alone.

Conclusion

Netdata delivers instant, high-resolution monitoring with anomaly detection.

Alternatives

Other tools on CheckOps that cover similar ground. Open a page, or compare one with Netdata side by side.