| What it does | Measure anything on your screen with pixel-perfect accuracy
| Free online tools for images, PDFs, text, developers and everyday tasks that run in your browser
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | Not given
| IN
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| Pricing model | Free
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| Pricing | Not given
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| Key features | - Smart Auto-Detect identifies your device from a database of 100+ profiles
- Three calibration methods: auto-detect, screen diagonal, and credit card
- Place rulers on any edge of the screen in any combination
- Click-to-measure distances in any direction
- Live cursor position tracking
- Dark mode with automatic system preference detection
- Support for four measurement units: cm, mm, inches, and pixels
| - Image compression and resizing
- PDF merge, split and conversion
- Word and character counter with readability analysis
- JSON formatter and validator
- QR code and barcode generation
- Password generator and strength checker
- Loan EMI calculator with prepayment simulation
- CSS gradient, shadow and animation generators
- DNS lookup and propagation checker
- Resume builder and ATS checker
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| What makes it different | - No installation required—runs entirely in your web browser
- Achieves near pixel-perfect accuracy typically within 0.5mm for well-calibrated screens
- Completely free with no ads, account, or limitations
- Calibration saved locally so no need to recalibrate on each visit
- Works on tablets and mobile devices with touchscreen support
| - Completely free with no sign-up, trials, watermarks or paid features
- 212 tools across 16 categories covering images, PDFs, text, code and everyday tasks
- Transparent about what data is sent and where
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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 ▲ +3 (up) since last check | 15 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 8 |
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| Citation Flow (Majestic) | 17 | 24 |
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| Referring domains (Majestic) | 4 | 18 |
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Online Ruler
JustTools