Open Source C# Application Performance Monitoring Tools

Pachtop is a fast, open-source system monitoring application that provides a modern and elegant way to view your computer’s performance. Built with Rust, Tauri, and React, it delivers real-time insights into CPU, RAM, disk, and network usage while remaining lightweight and responsive. Designed for Windows, macOS, and Linux, Pachtop displays both system metrics and running applications in a clean, intuitive interface. Users can easily track resource consumption, analyze storage, and check detailed hardware and OS information. With its cross-platform foundation and MIT license, Pachtop is ideal for developers, IT professionals, and power users who want transparency, speed, and full control — all in one visually appealing desktop tool.

Elastic APM .NET Agent. The agent can automatically instrument .NET Framework, .NET Core, and .NET applications using the .NET CLR Profiling APIs. The Profiling APIs provide a way to instrument an application or dependency code without code changes.

HttpReports is an APM (application performance monitor) system for Net Core. Based on MIT open-source protocol, The main functions include statistics, analysis, visualization, monitoring, tracking, etc. It is very suitable for use in microservices.

Application monitoring Framework and Command Center administration console to change application settings like alert scheme, monitoring timings, etc., Uses SOAP/XML webservice to communicate between Command Center and the monitored applications.