A suite of Monitoring Plugins (formerly known as nagios-plugins)
Self-hosted, lightweight server and website monitoring and O&M tool
Monitor temperature sensors, fan speed, voltage, load & clock speeds
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
Turn WiFi signals into real-time human sensing and spatial awareness.
Status page with uptime monitoring & API monitoring as code
Lightweight network IP scanner
Xray panel supporting multi-protocol multi-user expire day
Vitals — Hardware Monitor with In-Game Overlay
Scouter is open source APM (Application Performance Management) tool
Visibility into servers, applications, and infrastructure
The Network UPS Tools repository
An eye on your system
BGP and RPKI monitoring tool
An interactive NVIDIA-GPU process viewer and beyond
A fancy self-hosted monitoring tool
A Python based monitoring and tracking tool for Plex Media Server
Real-time monitoring for Proxmox, Docker, and Kubernetes
Apache HertzBeat(incubating) is a real-time monitoring system
Open source monitoring system and time series database
Terminal-based CPU stress and monitoring utility