performance-monitoring

A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ https://windows-internals.com

High performance Java APM. Powered by ASM. Try it. Test it. If you feel its better, use it.

Performance monitoring tools for Linux

nannyml: post-deployment data science in python

Monitor performance of you Rails applications (self-hosted and free)

Sudoless Apple Silicon system monitor (native SwiftUI GUI) with ANE / Media Engine / memory-bandwidth tracking

Free, open-source SQL Server performance monitoring — 32 collectors, real-time alerts, graphical plan viewer, MCP server for AI analysis. Supports SQL 2016-2025, Azure SQL, AWS RDS.