# Profiling

Java diagnostic and troubleshooting tool

Arthas is Alibaba's open-source Java diagnostic tool that lets developers troubleshoot production issues without modifying code or restarting servers. It attaches to running JVM processes to inspect class loading, decompile classes, trace method invocations, monitor performance metrics, and view real-time stack traces. Supports JDK 6+ with both telnet and WebSocket interfaces for local and remote diagnostics across Linux, macOS, and Windows.

Automatically detect and fix slow React re-renders

Open-source tool that highlights unnecessary and slow React re-renders directly in your app — as a browser extension, CLI, or drop-in package, with no code changes required.