Beszel is a lightweight server monitoring platform with historical metrics, Docker/Podman container stats, configurable alerts, multi-user access, and an API.

24.7k stars974 forksMITlast commit Actively maintained
Network monitoring platform that discovers and monitors devices and interfaces using SNMP, NetFlow, WMI and other protocols. Provides dashboards, real-time metrics, alerting, reporting and root-cause analysis for fault detection, troubleshooting and capacity planning.
Beszel is a lightweight server monitoring platform with historical metrics, Docker/Podman container stats, configurable alerts, multi-user access, and an API.

24.7k stars974 forksMITlast commit Actively maintained
Self-hosted S.M.A.R.T monitoring dashboard that collects SMART data, visualizes historical trends, and alerts on drive health.
8.1k stars296 forksMITlast commit Actively maintained
Self-hosted lightweight LAN IP/ARP scanner with web dashboard, new-host notifications, online/offline history, and metrics export to Prometheus or InfluxDB for Grafana.

7.5k stars283 forksMITlast commit Slowing down
Self-hosted network visibility and presence scanner that discovers connected devices and alerts on new, unknown, or changed hosts across your LAN/Wi‑Fi.

7k stars426 forksGPL-3.0last commit Actively maintained
Real-time monitoring dashboard for Proxmox, Docker/Podman, and Kubernetes with smart alerts, agent auto-discovery, metrics history, and optional AI insights.

6.6k stars265 forksMITlast commit Actively maintained
Zabbix is an open-source monitoring and observability platform for networks, servers, VMs, applications, and cloud infrastructure, with alerting and dashboards.

6.3k stars1.3k forksAGPL-3.0last commit Actively maintained
Scanopy scans networks to discover hosts and services, then generates live, interactive topology diagrams and auto-updating network documentation.

5.6k stars284 forksAGPL-3.0last commit Actively maintained
Dashdot is a modern server dashboard built with React and Node.js for real-time server monitoring on self-hosted systems.

3.5k stars134 forksMITlast commit Actively maintained
Self-hosted tool that auto-discovers system and container ports, maps services in real time, and helps prevent port conflicts across servers via a web dashboard.
2.4k stars99 forksMITlast commit Actively maintained
SmokePing is an active network monitoring tool that measures latency and packet loss over time, stores results in RRD, and visualizes them via a web UI with alerting.

2k stars216 forksGPL-2.0last commit Actively maintained
Tiny self-hosted dashboard to monitor and control UPS devices via Network UPS Tools (NUT), with real-time stats, multi-UPS support, and Prometheus/InfluxDB integrations.
1.6k stars45 forksApache-2.0last commit Actively maintained
Atlas is a containerized network infrastructure visualizer that scans subnets and Docker hosts, stores results, and presents real-time graphs and dashboards for monitoring.

1.3k stars76 forksMITlast commit Actively maintained
Meshping measures per-target ICMP latencies, builds histograms and heatmaps, runs traceroutes with Path MTU discovery, draws SVG network maps, and exposes Prometheus metrics.
168 stars10 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. 12 of 13 shipped a commit in the last six months. Licences in this list: MIT, GPL-3.0, AGPL-3.0, GPL-2.0, Apache-2.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Monitoring & Observability.