ProcessSpy

ProcessSpy is a native macOS utility that provides detailed insight into running processes, extending beyond the information shown by the built‑in Activity Monitor. It displays hierarchical process trees, allowing users to trace parent‑child relationships and understand how applications are spawned. The interface also lists open files for each process, shows environment variables, and offers a quick way to terminate unresponsive applications.

The tool targets developers, system administrators, and power users who need granular visibility into system activity on macOS. By exposing low‑level details such as file descriptors and environment settings, it supports troubleshooting, debugging, and performance analysis tasks that are difficult to perform with standard system monitors.

ProcessSpy distinguishes itself by mimicking the functionality of Sysinternals Process Explorer in a macOS‑native package, delivering a clean, straightforward UI while offering advanced monitoring capabilities without requiring external dependencies.