| What it does | Free on-screen measuring tools that run in your browser
| Modern utility tools for everyday work
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Actual-size ruler in cm, mm and inches
- Bank-card and screen-diagonal calibration
- Top, left and right rulers with drag-to-measure readout
- Full-screen mode and browser-zoom warning
- Image measurement tool
- Length unit converter
- Touch dragging support for phones and tablets
- Local storage of calibration without server uploads
| - Financial calculators for EMI, income tax and salary
- Science and chemistry tools including equation balancer
- Client-side processing with no file uploads
- Progressive Web App support for offline access
- Dark and light mode support
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| What makes it different | - Calibration step compensates for browsers' inability to detect physical display size
- ISO/IEC 7810 ID-1 standard bank card calibration ensures reproducible accuracy
- All calculations run locally in your browser with no data sent to servers
- Works on any device with a browser and JavaScript enabled
- Content follows standards-based principles with no invented precision or fake reviews
| - All 158 tools are completely free with zero hidden costs or paywalls
- No signup required—use tools instantly without registration
- Complete privacy: all processing happens on your device, files never uploaded
- Blazing fast performance with no server delays
- Works on all devices and browsers with fully responsive design
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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 ● no change since last check | 16 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 9 |
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| Citation Flow (Majestic) | 18 | 30 |
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| Referring domains (Majestic) | 10 | 34 |
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Online Ruler
ToolAdda