Open source APM: OpenTelemetry traces, metrics, and logs
Open-source systems performance monitor
Application to comfortably monitor your Internet traffic
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Bandwidth monitor and rate estimator
Monitors a distributed infrastructure and sends alerts
Python library and shell utilities to monitor filesystem events
Monitoring of JavaEE applications
SigNoz is an open-source APM. It helps developers monitor their apps
LuLu is the free open-source macOS firewall
Nagios Open Source network monitoring software - The Standard In ITM
Web UI for Jaeger
Quartz enterprise scheduler .NET
The Network UPS Tools repository
An eye on your system
A Python based monitoring and tracking tool for Plex Media Server
This is a multi-use bash script for Linux systems
A Fast Reverse Proxy
BGP and RPKI monitoring tool
Set of Ansible scripts that simplifies the setup of a personal VPN
Elastic APM Node.js Agent
An interactive NVIDIA-GPU process viewer and beyond
A simple program to monitor your network/data usage
Monitor and troubleshoot transactions in complex distributed systems