20 self-hosted Datadog Cloud Monitoring alternatives

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

79.9k stars6.5k forksGPL-3.0last commit 28 Jul 2026Actively maintained

Grafana is an open source observability and data visualization platform for querying, graphing, and alerting on metrics, logs, and traces across many data sources.

75.8k stars14.4k forksAGPL-3.0last commit 28 Jul 2026Actively maintained

Prometheus is an open-source monitoring and time-series database for collecting metrics, querying with PromQL, and alerting on system and application health.

65.3k stars10.7k forksApache-2.0last commit 24 Jul 2026Actively maintained

Glances is a cross-platform system monitoring tool providing a terminal dashboard, web UI, and REST/XML-RPC APIs for local or remote monitoring and exporting metrics.

33.2k stars1.8k forkslast commit 25 Jul 2026Actively maintained

SigNoz is an open-source platform that collects and correlates logs, metrics, and traces using OpenTelemetry for unified observability.

31.7k stars2.4k forkslast commit 27 Jul 2026Actively maintained

Grafana Loki is a Prometheus-inspired log aggregation system that indexes labels (not log contents) for cost-effective storage and fast querying, with Grafana integration.

28.6k stars4.1k forksAGPL-3.0last commit 27 Jul 2026Actively maintained

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

23.8k stars917 forksMITlast commit 28 May 2026Actively maintained

Open-source observability pipeline to collect, transform, and route logs and metrics with a single, high-performance binary and programmable transforms.

22.2k stars2.2k forksMPL-2.0last commit 27 Jul 2026Actively maintained

cAdvisor (Container Advisor) collects, processes, and exports resource usage and performance metrics for running containers, with a built-in web UI and REST API.

19.3k stars2.5k forkslast commit 20 Jul 2026Actively maintained

Fast, resource-efficient time series database compatible with Prometheus and Grafana, for scalable monitoring and long-term metrics storage.

17.4k stars1.7k forksApache-2.0last commit 27 Jul 2026Actively maintained

Self-hosted S.M.A.R.T monitoring dashboard that collects SMART data, visualizes historical trends, and alerts on drive health.

8k stars289 forksMITlast commit 13 Jul 2026Actively maintained

Self-hostable observability platform for uptime monitoring, alerting, incident management, on-call, status pages, logs, and APM in one integrated suite.

7.4k stars420 forksApache-2.0last commit 28 Jul 2026Actively 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.

7.1k stars249 forksMITlast commit 10 Sept 2025Slowing down

Real-time monitoring dashboard for Proxmox, Docker/Podman, and Kubernetes with smart alerts, agent auto-discovery, metrics history, and optional AI insights.

6.4k stars255 forksMITlast commit 27 Jul 2026Actively maintained

Zabbix is an open-source monitoring and observability platform for networks, servers, VMs, applications, and cloud infrastructure, with alerting and dashboards.

6.1k stars1.2k forksAGPL-3.0last commit 28 Jul 2026Actively 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 3 Mar 2026Actively maintained

Self-hosted speed test analysis tool that automates tests, stores results up to 30 days, and provides dashboards, health checks, and multi-server support.

3k stars151 forksMITlast commit 27 Jul 2026Actively maintained

Self-hosted monitoring for servers, services, SSL, incidents and status pages; React frontend with a Go backend and embedded SQLite data store.

2.8k stars239 forksMITlast commit 17 Jul 2026Actively maintained

Parseable ingests, analyzes, and extracts insights from MELT telemetry data with predictive analytics and a unified SQL/NL querying interface.

2.4k stars167 forksAGPL-3.0last commit 22 Jul 2026Actively 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.

2.3k stars94 forksMITlast commit 5 May 2026Actively maintained