Resources is a simple yet powerful monitor for your system resources and processes, written in Rust and using GTK 4 and libadwaita for its GUI.




Process Monitor is described as 'Advanced monitoring tool for Windows that shows real-time file system, Registry and process/thread activity. It combines the features of two legacy Sysinternals utilities, Filemon and Regmon, and adds an extensive list of enhancements including rich and' and is a very popular process monitoring tool in the os & utilities category. There are more than 50 alternatives to Process Monitor for a variety of platforms, including Windows, Linux, Mac, BSD and Android apps. The best Process Monitor alternative is Resources, which is both free and Open Source. Other great apps like Process Monitor are Process Lasso, Glances, SystemExplorer and KSysGuard.
Resources is a simple yet powerful monitor for your system resources and processes, written in Rust and using GTK 4 and libadwaita for its GUI.




Real-time process and CPU affinity optimization utility with ProBalance technology to preserve responsiveness. Automates rules, power schemes, and core selection. Mitigates system slowdowns, enables persistent affinities, watchdog monitoring, and instance limits, running lightweight.






Glances is a cross-platform monitoring tool which aims to present a large amount of monitoring information through a curses or Web based interface. The information dynamically adapts depending on the size of the user interface.




this is an alternative to process explorer, not process monitor - it displays general cpu usage etc, not system calls
It's task manager and an alternative for Process Monitor

System Explorer is an enhanced Taskmanager that provides detailed information about running processes, startup programs, IE add-ons (BHOs), drivers, services network connections, system resources and more.



It doesn't do Process Monitor functionality at all.
Very useful to process monitoring


KSysGuard, also known as KDE System Guard and KDE System Monitor, is designed to make simple process control available to a user without needing to do any special setup - the defaults are usually perfectly adequate.

It doesn't do Process Monitor functionality at all.


Resource monitor that shows usage and stats for processor, memory, disks, network and processes.
Python port of bashtop.




Pachtop is a lightweight, performant, and opensource system monitor that provides real-time monitoring of your system's performance, application monitoring, and detailed system information. Built with Rust and Tauri



SystemTap provides free software (GPL) infrastructure to simplify the gathering of information about the running Linux system. This assists diagnosis of a performance or functional problem. SystemTap eliminates the need for the developer to go through the tedious and disruptive...


System Monitor is a tool to manage running processes and monitor system resources.




TaskInfo is a poweful utility that combines and improves features of Task Manager and System Information tools. It visually monitors (in text and graphical forms) different types of system information in any Windows system (95, 98, ME, NT 4.

SpyStudio is the best product to trace user-mode API calls on Windows. SpyStudio is an Application tracer which shows and interprets calls, displaying the results in a structured way which is easy for any IT professional to understand.



It's my favorite to troubleshoot Windows apps, you can see exceptions and registry access like Regedit


strace is a diagnostic, debugging and instructional userspace utility for Linux. It is used to monitor interactions between processes and the Linux kernel, which include system calls, signal deliveries, and changes of process state.

It doesn't do Process Monitor functionality at all.