{"data":{"slug":"netdata","name":"Netdata","tagline":"GPL-3.0 per-second monitoring agent with auto-discovery, alerts and ML anomaly detection","category":"observability","categoryName":"Observability","url":"https://www.netdata.cloud","github":"https://github.com/netdata/netdata","pricing":"open-source","hook":"Netdata is a monitoring agent you install on each server: it finds running services on its own and collects per-second metrics, with ready-made dashboards, alerts and anomaly detection out of the box.","whatsGood":"GPL-3.0+ agent (netdata/netdata), release v2.12.1 (2026-10-08), commit on 2026-10-21. ★~81k (~116 a week). Runs on Linux, macOS, FreeBSD, Windows and Kubernetes. Useful when you want useful charts and alerts for a box in minutes, without building Prometheus and Grafana dashboards first.","theCatch":"Only the agent is GPL: the dashboard UI it ships is under Netdata's own NCUL1 license, free to use but not open source. Netdata Cloud is optional and has a free community tier, but the multi-node and team features (RBAC, centralized alerts) live there. If you need a fully open stack, pair the agent with Prometheus and Grafana instead of the bundled UI.","verdict":"The fastest way to see what a server is doing; know that the UI is not open source.","addedAt":"2026-10-21","featured":false,"domain":"Observability","subSpecialty":"Observability","subcategory":"Metrics","tags":["self-host","copyleft","observability","active"],"capabilities":[],"surfaces":["Self-host"],"ecosystem":["Multi-platform"],"licenseModel":"GPL-3.0+ agent; dashboard UI under NCUL1","githubStars":81068,"starsPerWeek":116,"access":"free","archived":false,"repo":{"createdAt":"2013-06-17","pushedAt":"2026-10-21","license":"GPL-3.0","archived":false,"checkedAt":"2026-10-21"}},"related":[{"slug":"sentry","name":"Sentry","tagline":"Error tracking that actually helps"},{"slug":"grafana","name":"Grafana","tagline":"Dashboards for everything observable"},{"slug":"prometheus","name":"Prometheus","tagline":"Time-series metrics for cloud-native"},{"slug":"opentelemetry","name":"OpenTelemetry","tagline":"Vendor-neutral observability framework"},{"slug":"datadog","name":"Datadog","tagline":"Unified observability platform"}],"links":{"self":"/api/gems/netdata","html":"/gems/netdata","markdown":"/gems/netdata.md","category":"/api/gems?category=observability","categoryPage":"/stacks/observability"}}