| What it does | Measure your reaction time and see where you rank against everyone else on the same device
| Free online device tests and calculators that run in your browser with nothing to install or upload
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| Stage | Not given
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| Founded | Not given
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| Based in | US
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Reaction time measurement with five trials and median scoring
- Device-specific percentile ranking (mouse, trackpad, touchscreen)
- Exportable score history stored in your browser
- Embeddable tests for third-party websites
- Anonymous population distribution comparison without tracking
| - Microphone testing with live input levels and recording
- Speaker and headphone testing with frequency sweeps
- Webcam testing with resolution and frame rate display
- Keyboard testing for dead, stuck and double-typing keys
- Mouse and controller testing with button and drift detection
- Typing speed and CPS measurement tools
- Date and time calculators with formatting options
- Number to words converter in multiple formats
- Privacy by design with no data sent to servers
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| What makes it different | - Device-specific rankings that account for hardware differences like screen refresh rate and input latency
- No accounts, no tracking, and no third-party scripts or advertising
- Transparent methodology with published reference data sources and clear limitations
- Fully embeddable tests with no installation or sign-up required
- Median scoring from multiple trials to reduce noise and account for natural variability
| - No installation, account or data upload required
- Works on all devices and browsers without downloads
- Automated testing with 15,000+ checks before each release
- Complete privacy with all processing done on your device
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 2 | 0 |
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| Citation Flow (Majestic) | 22 | 0 |
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| Referring domains (Majestic) | 9 | 0 |
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BenchSelf
DeviceCheckHub