| What it does | Free browser tools that never upload your files
| 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 | - WhatsApp Chat to PDF conversion
- Image compression for JPEG, PNG, and WebP
- AI background removal
- Passport photo resizing by country
- Static QR code generation
- JSON formatting and validation
- CSV to JSON conversion
- Base64 encoding and decoding
- Unix timestamp conversion with timezone support
- Favicon generation
| - 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 | - All processing runs in your browser with no file uploads to servers
- No account or sign-up required for any tool
- One clear job per tool with intuitive first-minute usability
- Practical guides for common workflows and size requirements
| - 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 ▲ +2 (up) since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 20 | 2 |
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| Citation Flow (Majestic) | 7 | 22 |
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| Referring domains (Majestic) | 14 | 9 |
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Tokitool
BenchSelf