Open-source, agent-based monitoring platform delivering per-second metrics, edge ML anomaly detection, tiered time-series storage and centralized cloud UI.

80.3k stars6.6k forksGPL-3.0last commit Actively maintained
Commercial monitoring and alerting platform for IT infrastructure. Monitors servers, network devices, services and applications via checks and plugins; provides dashboards, reporting, notifications, and extensibility for custom checks and integrations.
Open-source, agent-based monitoring platform delivering per-second metrics, edge ML anomaly detection, tiered time-series storage and centralized cloud UI.

80.3k stars6.6k forksGPL-3.0last commit Actively maintained
Modern web UI for monitoring NUT-compatible UPS devices with real-time charts, historical reporting, and multi-channel alerts. Docker-ready with client/server modes.
833 stars33 forksMITlast commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 2 of 2 shipped a commit in the last six months. Licences in this list: GPL-3.0, MIT. In exchange you take on hosting, backups and updates yourself.
Browse everything in Monitoring & Observability.