lsof-alternative

Semantic CLI tool for process management. Target by port, PID, name or path.

Menu bar port map for macOS — see who holds :3000, which project it belongs to, and why your server won't start. No sudo, no telemetry.

Project-aware lsof for macOS. Single-binary Go CLI that shows which dev project each listening port belongs to, and lets you kill, pause, or resume by port number. Find what's using port 3000.

🔍 whyrun - Cross-platform CLI to trace a port/PID/name/open file back to the process that owns it, with full parent launch chain. 跨平台端口/进程/文件溯源诊断工具，零依赖单文件。