Monitor your CPU, Memory, Disk, Network and GPU usage.
- System Information Utility
- Free • Open Source
- Linux
- Flathub
- Snapcraft

TrafficMonitor is a network monitoring suspension window software in Windows. It can display the current network speed, CPU and memory usage. It also support the functions of display in the taskbar, change skin and historical traffic statistics.
- Network Monitor
- Free • Open Source
- Windows

Arcane is a modern, web-based interface for managing your Docker environment, built with SvelteKit. It offers a clean, intuitive overview and powerful management tools for your containers, images, volumes, and networks—all in one place.
- Docker Manager
- Free • Open Source
- Self-Hosted
- Docker

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.
- System Information Utility
- Free • Open Source
- Linux
- Flathub

Memtest86+ is a free-to-download memory test software designed to test and stress test an x86 or x64 architecture computer's random access memory (RAM) for errors.
- Free • Open Source
- Windows
- Linux

iStat is a series of system monitor apps. It's available in different versions: iStat Menus, iStat for iOS and iStat Server as a companion application to the iStat for iOS app that lets you remotely monitor your computers (free for Windows and Mac).
- System Information Utility
- Paid • Proprietary
- Mac
- iPhone

Monitor running applications' CPU, memory, disk, and threads in real-time. Identify resource bottlenecks and performance spikes with a user-friendly interface.
- Process Monitoring Tool
- Free • Proprietary
- Windows

Mem Reduct is a small application that allows you to monitor and clean your computers memory. Exempt system cache, modified, and idle memory pages.
- Free • Open Source
- Windows

Hardinfo is a system information and benchmark tool for Linux. It shows detailed system info, including hardware, environment, and kernel. It can use lm_sensors and ACPI for temperature and battery information. It also has four CPU banchmarks and two FPU benchmarks.
- Discontinued
- System Information Utility
- Free • Open Source
- Linux
- KDE
- GNOME
- MATE
- Xfce

Resource monitor that shows usage and stats for processor, memory, disks, network and processes.
Python port of bashtop.
- Process Monitoring Tool
- Free • Open Source
- Mac
- Linux
- BSD

Firemin is a small utility to reduce the amount of memory Firefox or other browsers use. Although Firefox memory usage improved a little over the last few years, it still uses a lot of memory.
- Bundleware
- Free • Open Source
- Windows
- Mozilla Firefox

- Free • Open Source
- Linux
- Flathub
- Flatpak

Auto Tab Discard a lightweight extension that uses the native method (tabs.discard) to unload or suspend browser tabs to significantly reduce the memory footprint of your browser when many tabs are opened.
- Free • Open Source
- Online
- Microsoft Edge
- Google Chrome
- Opera
- Firefox

PrimoCache is a supplementary software caching scheme that cooperates with system memory to provide data caching for disks. It improves system performance by transparently storing data into memory such that future requests for that data can be served faster.
- Paid • Proprietary
- Windows

Yet another cross-platform graphical process/system monitor.
- Process Monitoring Tool
- Free • Open Source
- Mac
- Windows
- Linux

Organizes browser tabs into smart workspaces for projects, meetings, and workflows to reduce clutter, improve focus, and simplify context switching.
- Tab Manager
- Freemium • Proprietary
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Microsoft Edge
- Vivaldi
- Google Chrome
- Brave
- Chromium
- Mozilla Firefox

Tabmanager.io is an all-in-one window, session and tab manager extension for Chrome that helps you manage and organise open tabs and windows in one convenient place.
- Tab Manager
- Free • Proprietary
- Online
- Google Chrome

jdSystemMonitor is an advanced, desktop-independent system monitor for Linux. Its goal is to provide as much information about your system as possible, with a focus on process management.
- Process Monitoring Tool
- Free • Open Source
- Linux
- Flathub
- Flatpak

TechPowerUp Memtest64 is a lightweight, standalone utility that lets you check your system memory for problems at the hardware-level. It has a graphical interface, and can be run from within Windows.
- Free • Proprietary
- Windows

Amazon ElastiCache is a web service that makes it easy to set up, manage and scale distributed in-memory cache environments in the AWS Cloud.
- Freemium • Proprietary
- Software as a Service (SaaS)
- Amazon Web Services

Volatility is the open source memory forensics framework for incident response and malware analysis.
- Free • Open Source
- Windows
Hologram lets you theme your desktop with widgets and wallpapers (over 5 million to choose from!).
- System Information Utility
- Paid • Proprietary
- Mac

Mac OS X System Monitor and Process Explorer Tool atMonitor is the most advanced monitoring tool for Mac OS X that displays system activity in real-time. It is designed to allow quick assessment of computers state and it is powerful enough to make it a core utility in anyones sys.
- Discontinued
- Process Monitoring Tool
- Free • Proprietary
- Mac

Activity Monitor displays information about all the processes running on your Mac, including CPU, disk, memory, and network usage. You can see exactly how your computer’s resources are being used via a searchable table, helpful graphs, or even directly in the Dock icon.
- System Information Utility
- Free • Proprietary
- Mac































































