LibreHardwareMonitor is a free, open-source utility for Windows that reads sensor data from the components inside your PC. It is aimed at enthusiasts, gamers, system builders and anyone who wants to see what their processor, graphics card, motherboard and storage drives are doing in real time.
The program focuses on one job: showing sensor readings clearly and without extra features. It does not promise to tune your hardware or change settings for you. Instead, it gives you a transparent view of temperatures, loads and other values so you can decide what to do next.
What Is LibreHardwareMonitor Used For?
Most people open a hardware monitor for one of a few reasons. The first is checking temperatures during gaming or rendering, to see whether the processor or graphics card is running hotter than expected. The second is confirming that fans respond to load, which helps when you are troubleshooting noise or cooling problems.
A third common use is verifying a new build. After assembling a PC, many users want to be sure that every component is reported correctly and that idle and load values look reasonable. The program is well suited to this kind of quick check.
Finally, some people use readings as a baseline. Recording values on a clean system makes it easier to spot changes later, such as rising temperatures caused by dust buildup or an aging thermal paste application.
How Hardware Sensors Work on a Windows PC
Modern components contain built-in sensors. Processors report core temperatures and power draw, graphics cards report GPU and memory temperatures and clock speeds, and motherboards often include chips that measure voltages and fan speeds. Drives can report their own temperature through SMART data.
Software such as LibreHardwareMonitor reads these values and presents them in a single interface. Because different vendors expose sensors in different ways, the accuracy and naming of some readings depend on the hardware itself. Two programs may therefore show slightly different labels for the same sensor.
Understanding this helps interpret results. A value that looks unusual may simply be a sensor with a different meaning than expected, so comparing readings across several tools is a sensible habit.
Who Should Consider Using It?
Enthusiasts who like to understand their hardware in detail will find the program useful. It shows many sensors at once, which suits people who enjoy analyzing thermal behavior or comparing configurations.
System builders and IT technicians can use it for fast diagnostics. Checking whether a machine is overheating, or confirming that storage drives report healthy temperatures, takes only a few minutes.
Casual users can also benefit, although they may prefer a simpler dashboard. For someone who only wants to know whether their PC is running hot, a single glance at the readings is often enough.
Reading Temperatures Without Panic
Sensor values are only meaningful in context. Idle temperatures are usually much lower than load temperatures, and the acceptable range depends on the component and its specification. Rather than memorizing numbers, check the manufacturer's documentation for the maximum safe operating temperature of your processor or graphics card.
Sudden spikes are normal during demanding tasks. What matters more is whether temperatures stabilize at a reasonable level or keep climbing. Repeated observation over time gives a clearer picture than a single reading.
Key features
Broad hardware coverage
Open-source transparency
No cost to use
Native Windows build
How to install LibreHardwareMonitor on Windows
- 1
Download the program
Get the latest build from the official project page or from the GitHub Releases section of the project. Download only from the official website or GitHub, never from unknown mirror sites.
- 2
Verify the file
Compare the SHA-256 checksum of the downloaded archive with the value published by the project, if one is provided. Checking the file helps confirm that it has not been altered during transfer.
- 3
Extract the archive
Unpack the archive to a folder of your choice. A dedicated folder in a location you control makes it easier to keep the program organized and update it later.
-
Run the application
Launch the executable. Because the tool reads hardware sensors, Windows may ask for administrator rights so that it can access all available readings. Grant permission only if you trust the source you downloaded it from.
System requirements
- Windows operating system
- Administrator rights are recommended to read all sensors
How to use LibreHardwareMonitor
Using the program is straightforward. Once it is running, you will see a tree of hardware components. Each node can be expanded to reveal the sensors it reports.
A typical workflow looks like this:
- Launch the program and wait a few seconds for sensors to populate.
- Expand the processor, graphics card and motherboard sections to review temperatures and voltages.
- Note idle values while the system is at rest.
- Run a demanding application, such as a game or benchmark, and watch how readings change.
- Return to idle and confirm that temperatures drop back to normal levels.
- Compare your results with the manufacturer's specifications for each component.
If a sensor shows no value, the motherboard or device may not expose that reading, which is common on some systems.
Pros & cons
- Free and open source
- Covers a wide range of components
- Transparent, inspectable code
- Simple, focused interface
- Useful for both quick checks and long-term observation
- Interface is more technical than consumer dashboards
- Sensor availability depends on hardware and vendor support
- Readings may require administrator rights
- Labels can differ from other monitoring tools
Is LibreHardwareMonitor safe?
Download the program only from the official project page or the GitHub Releases section. Before running it, verify the SHA-256 checksum or signature if the project publishes one, and make sure the file matches what you expect. Avoid copies from third-party download portals, since they may bundle unwanted software.
The program is a monitoring tool and does not need to change your system settings to read sensors. Still, granting administrator rights gives it broad access, so run it only from a source you trust. Antivirus software may occasionally flag hardware monitoring tools because they access low-level data. If this happens, check the file's origin and checksum rather than disabling your protection entirely.
- Official source only. Download from github.com/librehardwaremonitor/librehardwaremonitor. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
Compared with MSI Afterburner, which focuses on overclocking and undervolting GPUs, LibreHardwareMonitor is a pure monitoring tool. It does not change clock speeds or voltages, so it is a better fit for people who only want to observe readings. HWiNFO covers a similar range of sensors and offers a more detailed interface with logging and reporting options, which many users prefer for deep analysis. GPU-Z is more specialized, concentrating on graphics card information such as memory type and GPU details. If you want to read sensors without extra features, LibreHardwareMonitor's open-source approach and simplicity make it a solid choice.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- v0.9.6
- Last update
- 29 Oct 2026
- Windows support
- Yes (official Windows version)
- Source code
- github.com/librehardwaremonitor/librehardwaremonitor
Frequently asked questions
Yes, LibreHardwareMonitor is free. It is an open-source project, and its source code is available on GitHub. You can download the official Windows version without paying or starting a trial.
The program reads sensors from motherboards, Intel and AMD processors, NVIDIA, AMD and Intel graphics cards, HDD, SSD and NVMe drives, and network cards. The available readings depend on what each device exposes to the operating system.
It is safe when you download it from the official project page or GitHub and verify the file. Because it accesses low-level hardware data, some antivirus programs may flag it, so confirm the checksum rather than turning protection off.
Administrator rights are recommended because they allow the program to read more sensors. Without them, some readings may be unavailable on certain systems. Run it with elevated permissions only if you trust the source.
No, the program is designed for monitoring. It displays sensor values but does not adjust clock speeds, voltages or fan curves. For tuning, a dedicated overclocking tool is needed.
Not every motherboard or device exposes every sensor. Some readings depend on vendor support and driver behavior, so a missing value is often a hardware limitation rather than a fault in the program.
Both read a wide range of sensors. HWiNFO offers more extensive logging and reporting, while LibreHardwareMonitor is simpler and fully open source. Many users run both to cross-check readings.
Verdict
LibreHardwareMonitor is a dependable, free choice for anyone who wants a clear view of the sensors inside a Windows PC. It suits enthusiasts, builders and technicians who value transparency and a focused feature set. If you need overclocking controls or detailed reporting, pair it with a dedicated tool, but for straightforward monitoring it does the job well.