Self-hosted, lightweight server and website monitoring and O&M tool
Concise networking code leveraging async-await, Decodable & Generics
Open source APM: OpenTelemetry traces, metrics, and logs
Sentry SDKs for JavaScript
CLI tool for configuring and monitoring Claude Code
Elastic APM .NET Agent
Nagios Open Source network monitoring software - The Standard In ITM
Datadog Go Library including APM tracing, profiling, and security
Lightweight network IP scanner
Cross-platform application monitoring and error tracking software
The Active Monitoring System
Scouter is open source APM (Application Performance Management) tool
Monitor temperature sensors, fan speed, voltage, load & clock speeds
BGP and RPKI monitoring tool
Real-time Claude Code usage monitor with predictions and warnings
Apache HertzBeat(incubating) is a real-time monitoring system
Vendor-neutral programmable observability pipelines
Open source monitoring system and time series database
Ncurses-based monitoring application for wireless network devices
sp_whoisactive
Manages, configures, and monitors Microsoft 365 tenant configurations
Monitor and troubleshoot transactions in complex distributed systems
A distributed and high-performance monitoring system
Open-source systems performance monitor
A simple program to monitor your network/data usage