| What it does | Free online tool that transforms any display into a creative workspace with multiple colors and fullscreen mode
| Measure your reaction time and see where you rank against everyone else on the same device
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| US
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Multiple color options including white, black, red, green, blue, yellow, purple, orange, and pink
- Fullscreen mode with no browser bars or distractions
- Download high-resolution images up to 8K resolution (7680x4320)
- Multi-screen sync feature for synchronizing colors across browser windows
- Compatible with all monitor types and screen sizes
- Dead pixel detection for monitor testing
- Monitor cleaning to spot dust, smudges, and fingerprints
- No downloads or installations required
| - 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
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| What makes it different | - Completely free with no hidden costs, subscriptions, or ads
- Works instantly in any browser without downloads or installations
- Universal compatibility across all devices and monitor types
- High-resolution downloads up to 8K for professional use
- Multiple use cases including digital art, monitor testing, and focus work
| - 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
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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) | 4 ● no change since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 5 | 2 |
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| Citation Flow (Majestic) | 21 | 22 |
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| Referring domains (Majestic) | 28 | 9 |
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White Screen Tool
BenchSelf