Libre Hardware Monitor
Libre Hardware Monitor: A capable free monitor for Windows developers who need sensor access through APIs. Ranked #9 of 59 in Hardware Monitoring Software by our editors (7.9/10); pricing: Free plan; best for windows developers needing sensor APIs.
At a glance
- Editor score7.9 / 10
- PricingFree plan
- Best forWindows developers needing sensor APIs
- Free planYes
- Paid fromFree
- Remote monitoringYes
- Facts checked24 Sep 2026
Where it wins
- Monitors temperatures, fans, voltages, loads, and clock speeds
- Covers CPUs, GPUs, storage, motherboards, and network cards
- Provides a .NET library and local JSON sensor interface
Where it doesn't
- The main graphical application is focused on Windows
- Alerting capabilities are limited
- Verified integrations are limited beyond its APIs and library
Our verdict on Libre Hardware Monitor
Libre Hardware Monitor is free, open-source software for reading computer hardware sensors through a Windows Forms graphical interface and local web interface. It is aimed at Windows developers and technical users who need visibility into temperatures, fan speeds, voltages, loads, and clock speeds across motherboards, processors, graphics cards, storage drives, and network cards. Its reusable .NET monitoring library also makes it relevant for applications that need to incorporate hardware readings rather than display them only in a standalone utility.
Its strongest differentiator is the combination of desktop monitoring and programmatic access. The local web interface provides JSON sensor access, while the .NET library supports reuse in other applications. The sensor endpoint can also set fan-control values, extending the project beyond passive reporting. This makes Libre Hardware Monitor a focused fit for Windows software that needs local hardware telemetry or fan-control functionality without a paid plan.
The trade-off is scope. The primary graphical experience is Windows-focused, and the published positioning emphasizes limited verified integrations and alerting. The product is therefore better suited to local monitoring and developer-oriented sensor access than to a broad monitoring platform with extensive integrations or mature alert workflows. Choose it if free, open-source access to common hardware sensors, a local JSON interface, or a reusable .NET library matters most. Consider an alternative if cross-platform desktop coverage, wider integrations, or more developed alerting is central to the requirement.
Your product? Our editors can test Libre Hardware Monitor in depth and publish a review, labelled as paid · from $149/mo →
Libre Hardware Monitor pricing
Libre Hardware Monitor fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported platforms | Windows |
| Remote monitoring | Yes |
| Monitored device limit | Not verified |
| Sensor history | Not verified |
| Alert channels | Not verified |
| Custom sensor support | Not verified |
| Deployment | Desktop |
| Platforms | Windows |
| Support | Community |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 24 Sep 2026 |
Alternatives to Libre Hardware Monitor
- GlassmkrFree monitoring for Linux hardware, with hosted simplicity or self-hosted control.9.3
- Supermicro SuperDoctor 5A free, focused monitor for Supermicro server health, alerts, logs, and remote power control.9.2
- HWiNFOA deep Windows diagnostics suite for users who need detailed sensors, reports, and alerts.9.1
See all Libre Hardware Monitor alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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