System Information Utilities

You want to see what parts are in the computer you’re using, but you’re unsure and not able to open it. Apps like these will detail everything you need about the hardware in your PC and the operating system it’s currently running. Think of it as if software like Speccy provided you a “snapshot” of your computer at the current moment, offering statistics such as how fast the processor is or how hot each component of the computer is running. This info is especially useful for troubleshooting and knowing what most needs to either be cooled or even replaced.

  1. CPU-Z icon
     666 likes

    CPU-Z is a freeware system profiler (system monitor) application for Microsoft Windows (for all versions from 95 on) that detects the central processing unit, RAM, motherboard chipset, and other hardware features of a modern personal computer, and presents the information in one...

    67 CPU-Z alternatives
    CPU-Z screenshot 1

    License model

    • FreeProprietary

    Platforms

    • Windows
    • Android
    • PortableApps.com
    CPU-Z screenshot 1
    for android
    +1
    for android

    Properties

    1.  Lightweight

    Features

    1.  Portable
    2.  Hardware Monitoring
    3.  Stress Testing
    4.  Ad-free
    5.  Works Offline
    6.  No registration required
    7.  GNU/linux-libre
    8.  AMD
  2. HWiNFO (32/64) icon
     279 likes

    HWiNFO are professional hardware information and diagnostic tools supporting latest components, industry technologies and standards. Both tools are designed to collect and present the maximum amount of information possible about computers hardware which makes them suitable for...

    99 HWiNFO (32/64) alternatives
    HWiNFO (32/64) screenshot 1

    License model

    • Free PersonalProprietary

    Platforms

    • Windows
    • PortableApps.com

    Properties

    1.  Lightweight

    Features

    1.  Hardware Monitoring
    2.  Temperature Monitoring
    3.  Portable
    4.  Support for S.M.A.R.T. data
    5.  Works Offline
    6.  Fan Speed
    7.  Dark Mode
    8.  No registration required
    9.  Hardware Diagnostics
  3. Rainmeter icon
     463 likes

    Rainmeter allows you to display customizable skins on your desktop, from hardware usage meters to fully functional audio visualizers. You are only limited by your imagination and creativity.

    33 Rainmeter alternatives
    Rainmeter screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Windows
    Rainmeter screenshot 1
    Rainmeter screenshot 2
    +1
    Rainmeter screenshot 3

    Properties

    1.  Lightweight
    2.  Support for Themes

    Features

    1.  Widgets
    2.  Customize skin
    3.  CPU Monitoring
    4.  Custom widgets
    5.  Live Wallpapers
    6.  Ad-free
    7.  Works Offline
    8.  Hardware Monitoring
    9.  No registration required
    10.  Support for Multiple Monitors
    11.  Portable
    12.  Dark Mode
  4. Speccy icon
     470 likes

    Speccy is a system information utility for PCs, available in installer and portable versions, supporting 24 languages. It quickly scans your computer, providing a detailed overview of all installed hardware components.

    76 Speccy alternatives
    Main Window

    License model

    • FreemiumProprietary

    Platforms

    • Windows

    Properties

    1.  Lightweight

    Features

    1.  Temperature Monitoring
    2.  Portable
    3.  Hardware Monitoring
    4.  Ad-free
    5.  Works Offline
    6.  Multiple languages
    7.  CPU Monitoring
    Bundleware

    The installer propose you to install additional third party software like Google Chrome

  5. CrystalDiskMark icon
     151 likes

    Efficient tool for measuring HDD and SSD performance through sequential and random read/write speed tests, featuring a user-friendly interface.

    41 CrystalDiskMark alternatives
    CrystalDiskMark screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Windows
    • PortableApps.com
    CrystalDiskMark screenshot 1
    CrystalDiskMark screenshot 2
    +1
    CrystalDiskMark screenshot 3

    Properties

    1.  Lightweight

    Features

    1.  Portable
    2.  Ad-free
    3.  Works Offline
  6. Open Hardware Monitor icon
     266 likes

    The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer.

    74 Open Hardware Monitor alternatives
    On Windows 7
    On Debian Linux 6.0 using the Mono Framework.

    License model

    • FreeOpen Source

    Platforms

    • Windows
    • Mono

    Properties

    1.  Lightweight

    Features

    1.  Temperature Monitoring
    2.  Hardware Monitoring
    3.  Voltage monitoring
    4.  Portable
    5.  Fan Speed
    6.  No installation required
    7.  History graphs
    8.  Command line interface
    9.  Export to CSV
    10.  Sensors
    Discontinued

    There has not been any code change since December 2020, also the community now wonders if it is abandoned: https://github.com/openhardwaremonitor/openhardwaremonitor/issues/1471 There also seems to be a fork called LibreHardwareMonitor (which is already listed as an alternative) and appears to be the most active fork right now.

  7. GPU-Z icon
     279 likes

    GPU-Z is a lightweight system utility designed to provide vital information about your video card and graphics processor.

    34 GPU-Z alternatives
    GPU-Z screenshot 1
    GPU-Z screenshot 2
    GPU-Z screenshot 3

    License model

    • FreeProprietary

    Platforms

    • Windows
    • PortableApps.com

    GPU-Z Features

    1.  Hardware Monitoring
    2.  Portable
    3.  Sensors
  8. Sysinternals Suite icon
     276 likes

    The Sysinternals Troubleshooting Utilities have been rolled up into a single Suite of tools. This file contains the individual troubleshooting tools and help files. It does not contain non-troubleshooting tools like the BSOD Screen Saver or NotMyFault.

    47 Sysinternals Suite alternatives
    Sysinternals Suite screenshot 1

    License model

    • FreeProprietary

    Platforms

    • Windows

    Properties

    1.  Lightweight

    Features

    1.  Portable
    2.  Customize Windows
    3.  Hardware Monitoring
    4.  Optimization
  9. MSI Afterburner icon
     138 likes

    Tool to manage video cards. Shows video card stats (temp, GPU usage, etc.). Allows overclocking, controlling of fans, etc.

    50 MSI Afterburner alternatives
    MSI Afterburner screenshot 1

    License model

    • FreeProprietary

    Platforms

    • Windows
    MSI Afterburner screenshot 1
    MSI Afterburner screenshot 2
    +6
    MSI Afterburner screenshot 3

    Top MSI Afterburner Features

    1.  Overclock
    2.  Hardware Monitoring
    3.  Temperature Monitoring
    4.  FPS counter
    5.  OSD
    6.  In-Game Overlay
    7.  Fan Speed
    8.  Skinnable
    9.  Support for 64 bit
    10.  Works Offline
    11.  Ad-free
    12.  Portable
  10. SpeedFan icon
     250 likes

    SpeedFan is a program that monitors voltages, fan speeds and temperatures in computers and controls the fans if possible.

    47 SpeedFan alternatives
    SpeedFan screenshot 1

    License model

    • FreeProprietary

    Platforms

    • Windows
    SpeedFan screenshot 1
    SpeedFan screenshot 2
    +4
    SpeedFan screenshot 3

    Properties

    1.  Lightweight

    Features

    1.  Fan Speed
    2.  Hardware Monitoring
    3.  Overclock
    Discontinued

    The developer promised new versions, but the program seems to be no longer updated. Latest version, 4.52, released in June 2016, can be still downloaded from the official website.

  11. Libre Hardware Monitor icon
     43 likes

    Libre Hardware Monitor, a fork of Open Hardware Monitor , is free software that can monitor the temperature sensors, fan speeds, voltages, load and clock speeds of your computer.

    22 Libre Hardware Monitor alternatives
    Libre Hardware Monitor screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Windows
    • .NET Framework

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Temperature Monitoring
    2.  Hardware Monitoring
    3.  Voltage monitoring
    4.  Portable
    5.  Ad-free
    6.  Works Offline
    7.  Dark Mode
  12. AIDA64 icon
     164 likes

    AIDA64 offers a complete set of tools to benchmark, overclock, monitor, fine-tune, and troubleshoot Windows based desktop and mobile computers.

    89 AIDA64 alternatives
    AIDA64 screenshot 1

    License model

    Platforms

    • Windows
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • Windows Phone
    • iPad
    • Tizen OS
    AIDA64 screenshot 1
    AIDA64 screenshot 2
    +7
    AIDA64 screenshot 3

    Properties

    1.  Lightweight

    Features

    1.  Portable
    2.  Ad-free
    3.  Hardware Monitoring
    4.  Overclock
  13. Sidebar Diagnostics icon
     78 likes

    SidebarDiagnostics - A simple sidebar for Windows desktop that displays hardware diagnostic information.

    45 Sidebar Diagnostics alternatives
    Sidebar Diagnostics screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Windows
    General Settings
    Advanced Settings
    +2
    Customization

    Sidebar Diagnostics Features

    1.  Temperature Monitoring
    2.  Real-time monitoring
    3.  Hardware Monitoring
    4.  Portable
    5.  Performance Monitoring
    6.  Dark Mode
    7.  No registration required
    8.  Ad-free
    9.  Fan Speed
  14. TrafficMonitor icon
     51 likes

    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.

    52 TrafficMonitor alternatives
    Taskbar No activity

    License model

    • FreeOpen Source

    Platforms

    • Windows
    Taskbar uploading
    Main (floating) window
    +9
    Main (floating) window options

    Properties

    1.  Lightweight

    Features

    1.  Network speed monitor
    2.  CPU Monitoring
    3.  Ad-free
    4.  Portable
    5.  No registration required
    6.  Dark Mode
    7.  GPU Monitoring
  15. HWMonitor icon
     116 likes

    HWMonitor for Windows® x86/x64 is a hardware monitoring program that reads PC system's main health sensors : voltages, temperatures, powers, currents, fans speed, utilization, clock speeds…

    32 HWMonitor alternatives
    HWMonitor screenshot 1

    License model

    • FreemiumProprietary

    Platforms

    • Windows

    HWMonitor Features

    1.  CPU temperature
    2.  Hardware Monitoring
    3.  Temperature Monitoring