System Monitor is a tool to manage running processes and monitor system resources.
Cost / License
- Free
- Open Source (GPL-2.0)
Application typeApplication types
Platforms
- Linux
- BSD
- GNOME
United States




Apps similar to ProcessSpy include Process Explorer, which is free. Other options are htop, System Informer, Mission Center and Resources. You're spoiled for choice with Process Management Tools like ProcessSpy: we list more than 50 alternatives for Windows, Linux, Mac, Android and iPhone.
System Monitor is a tool to manage running processes and monitor system resources.




Displays active TCP and UDP endpoints, including local and remote addresses, connection states, and owning processes. Provides real-time color-coded updates, adjustable refresh, IP resolution, and options to close connections or export data for analysis.


Displays all open TCP/IP and UDP ports with full process details including name, path, version, creation time, and user information. Supports closing connections, killing processes, marking suspicious ports, exporting data in multiple formats, and portable operation for network monitoring.



vtop is a graphical command-line tool that uses unicode braille to chart CPU and memory usage. It can be easily extended.



Get real-time Apple Silicon performance data without sudo, including CPU, GPU, RAM usage, power and temperature metrics, per-cluster utilization, RAM and swap stats, historical charts, color themes, and detailed system information directly via CLI.

Sees what your machine is really doing — processes, memory, disk and outgoing network traffic in one live radar, explained in plain language.




A free and portable process database on your Windows computer that helps you find portable applications run from anywhere.

Task Manager DeLuxe (TMX) is based on MiTeC System Information Component Suite and offers powerful features available in standard Windows Task Manager in lightweight portable package with many more enhancements.



