About Libre Hardware Monitor

What Is Libre Hardware Monitor?

Libre Hardware Monitor is a free, open-source application that reads hardware sensors on your Windows PC. It tracks CPU temperatures, GPU thermals, fan speeds, voltage rails, clock frequencies, storage health, and network throughput – all from a single, lightweight interface.

Built on C# and .NET, the program runs as a portable executable. There is no installer. You extract it, launch it as administrator, and immediately see a full tree of every sensor your motherboard, processor, and graphics card expose. Over 2.5 million users have downloaded the current release alone, and the project has earned nearly 8,000 stars on GitHub.

The Story Behind the Project

Libre Hardware Monitor traces its roots back to Open Hardware Monitor, a project started by Michael Moller around 2010. Open Hardware Monitor quickly became a popular free alternative to paid tools like AIDA64. It gave users a clean way to check their CPU temperature without touching the command line or buying a license.

But around 2016, development slowed. Updates came less often, and newer hardware – AMD Ryzen processors, Intel 10th-gen chips, modern NVMe drives – went unsupported. The community grew frustrated. Forks appeared on GitHub, and eventually one gained traction: Libre Hardware Monitor.

What started as a handful of patches to keep Open Hardware Monitor alive has turned into a full-fledged project with hundreds of contributors, regular releases, and a developer library used in commercial and open-source applications alike.

What It Actually Does

At its core, Libre Hardware Monitor reads the sensor chips on your motherboard, CPU, GPU, and storage devices. But the feature set has grown well beyond basic temperature readouts.

The built-in web server is particularly useful. Enable it, and you can check your PC temperatures from your phone or another computer on the same network. Home Assistant users can pull sensor data directly into their smart home dashboards through the official integration.

The People Behind It

Libre Hardware Monitor is not built by a company. It is maintained by a community of 262+ volunteers on GitHub. There is no CEO, no marketing team, no venture capital. Just developers, hardware enthusiasts, and sysadmins who want a reliable way to monitor their machines.

The project accepts contributions from anyone. Bug reports, motherboard sensor definitions, driver patches, and documentation updates all come through GitHub pull requests. Version 0.9.4 alone added 52 new contributors to the project. That kind of growth speaks to how much the PC hardware community values having a free, transparent monitoring tool.

The codebase is licensed under MPL-2.0 (Mozilla Public License 2.0), which means anyone can read, modify, and distribute the source code. The NuGet library – LibreHardwareMonitorLib – has become a building block for other open-source projects, Rainmeter skins, and commercial monitoring solutions.

Why Users Rely on It

Hardware monitoring tools are a crowded category. HWiNFO64, HWMonitor, AIDA64, Core Temp – users have plenty of options. So why has Libre Hardware Monitor built the following it has?

A few reasons stand out. First, it is genuinely free. No trial period, no “pro” upsell, no feature gates. Everything works out of the box. Second, the source code is open. Users on Reddit and forums regularly point to this as a trust factor, especially for software that runs with administrator privileges and accesses kernel-level drivers. Third, it is portable. No installation, no registry entries, no services running in the background. Extract the ZIP, run the executable, close it when you are done.

For developers, the NuGet library adds another dimension. You can build your own monitoring dashboard, create custom alerts, or feed sensor data into Grafana through the WMI provider. That kind of extensibility keeps power users invested in the project long-term.

About This Website

Our goal is simple: help people discover Libre Hardware Monitor, understand what it does, and get it running on their PC without confusion. The official GitHub repository has thorough technical documentation, but not everyone is comfortable navigating GitHub. This site bridges that gap.