Monitor your servers, containers, and applications, in high-resolution and in real-time!

The Prometheus monitoring system and time series database.

Glances an Eye on your system. A top/htop alternative for GNU/Linux, BSD, Mac OS and Windows operating systems.

Analyzes resource usage and performance characteristics of running containers.

Open-source cron job and background task monitoring service, written in Python & Django

A network event stream processing system, in Clojure.

Hard Drive S.M.A.R.T Monitoring, Historical Trends & Real World Failure Thresholds

Community-based GPL-licensed network monitoring system

Time Series Alerting Framework

Alerta monitoring system

PHP Server Monitor

rtop is an interactive, remote system monitoring tool based on SSH

A simple, modern server dashboard, primarily used by smaller private servers

The core of our monitoring platform with a powerful configuration language and REST API.

Main repository for munin master / node / plugins

Cacti ™

Nagios Core

phpSysInfo: a customizable PHP script that displays information about your system nicely

Checkmk - Best-in-class infrastructure & application monitoring

Simple. Scalable. Multi-cloud monitoring.