ThermalStats
ThermalStats: Free browser and CLI CPU/GPU stress tests with live temperatures and community comparisons. Ranked #32 of 32 in PC Stress Testing Tools by our editors (5.5/10); pricing: Free plan; best for browser or CLI load checks on newer systems.
At a glance
- Editor score5.5 / 10
- PricingFree plan
- Best forBrowser or CLI load checks on newer systems
- Free planYes
- Paid fromNone
- CPU stress testingYes
- Founded2026
- Facts checked5 Oct 2026
Where it wins
- Runs CPU, GPU, or combined stress tests in browser or CLI
- Displays live CPU and GPU temperatures and detects hardware
- Compares verified CLI results with similar hardware
Where it doesn't
- CLI downloads are listed for Windows and Linux only
- Browser tests rely on WebGPU and Web Workers
- Focused on CPU/GPU cooling, not whole-system testing
Our verdict on ThermalStats
ThermalStats is a free PC stress-testing tool for builders and enthusiasts who want to check CPU and GPU cooling. It offers browser-based tests using WebGPU and Web Workers, plus a CLI for Windows and Linux. Users can run CPU, GPU, or combined workloads, view live temperatures, and set a test duration. Automatic hardware detection and diagnostic mode—which checks sensor access, drivers, and possible blockers—help explain whether a system is ready to run a test.
Its strongest fit is temperature comparison rather than broad system validation. The site compares readings with results for similar hardware, including breakdowns by hardware and cooling type. The CLI can submit verified results to the community database, giving users a way to place a temperature reading in context. Browser tests provide a separate route for running CPU and GPU loads, while the CLI adds hardware detection and temperature readings. This combination suits users focused on cooling behavior; it should not be mistaken for a whole-system testing suite.
ThermalStats is free, with no paid tiers described. It is open source and available as a web tool and desktop CLI, with email support. The CLI’s listed downloads cover Windows and Linux, while macOS is described as coming soon on the test page. The tool is newly founded, so buyers looking for a longer-established track record or broader system coverage may prefer a more established whole-system testing alternative. For solo users and small PC-building projects that want focused CPU/GPU load checks and temperature comparisons, ThermalStats is a practical starting point.
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ThermalStats pricing
ThermalStats fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| CPU stress testing | Yes |
| GPU stress testing | Yes |
| Memory stress testing | Not verified |
| Combined system workload | Yes |
| Error detection | Not verified |
| Platform support | Not verified |
| Deployment | Cloud, Desktop |
| Platforms | Web, Windows, Linux |
| Support | |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | thermalstats.com |
| Facts checked | 5 Oct 2026 |
Alternatives to ThermalStats
- OCCTBroad component testing for PC stability, with free personal use and paid reporting options.8.9
- BurnInTestBroad component testing with bootable runs and exportable reports, sold by one-time license.8.9
- AIDA64AIDA64 pairs PC stress testing with detailed sensor monitoring and business network tools.8.7
See all ThermalStats alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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