| What it does | Measure your reaction time and see where you rank against everyone else on the same device
| Free online stopwatch, countdown timers, and time management tools for classrooms, workouts, and everyday use
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| Stage | Not given
| Startup
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| Founded | Not given
| 2024
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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
| - Stopwatch with lap times and split recording
- Countdown timer with audio alerts
- Interval timer for HIIT training
- Fullscreen display for projectors and classrooms
- Keyboard shortcuts for hands-free control
- Multiple simultaneous timers in browser tabs
- Offline functionality after initial load
- Visual timer with color-change warning system
- Exam timer with fullscreen high-contrast mode
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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
| - 50+ free timer tools with no download, login, or paywall required
- Privacy-first design with no data collection for unregistered users
- Mobile-first design optimized for phones and tablets in real-world conditions
- Millisecond-level accuracy using browser Performance API
- WCAG 2.1 AA accessibility compliance with sensory-friendly options
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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) | Not checked yet ▼ −2 (down) since last check | 33 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 15 |
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| Citation Flow (Majestic) | 22 | 29 |
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| Referring domains (Majestic) | 9 | 77 |
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BenchSelf
Stopwatch.now