A suite of Monitoring Plugins (formerly known as nagios-plugins)
Self-hosted, lightweight server and website monitoring and O&M tool
The open source post-building layer for agents
Monitor the stability of a Pandas or Spark dataframe
Monitor temperature sensors, fan speed, voltage, load & clock speeds
Real-time monitoring for Proxmox, Docker, and Kubernetes
Floating window used to display current network speed, CPU & memory
Disk Inspection and Monitoring
Monitor temperature sensors, fan speeds, voltages, load & clock speeds
The Active Monitoring System
Scouter is open source APM (Application Performance Management) tool
Open source monitoring system and time series database
Lightweight network IP scanner
The open source time series database
A Python based monitoring and tracking tool for Plex Media Server
Vitals — Hardware Monitor with In-Game Overlay
Cross-platform lib for process and system monitoring in Python
The Open Source Security Platform
Free open-source macOS menu bar toolkit
GRBL controller application with G-Code visualizer written in Qt
An eye on your system
Turn WiFi signals into real-time human sensing and spatial awareness.
BGP and RPKI monitoring tool
Bandwidth monitor and rate estimator
VictoriaMetrics: fast, cost-effective monitoring solution