| What it does | Free on-screen measuring tools that run in your browser
| Free browser tools for audio, display, device, image and measuring tasks that run instantly with no sign-up
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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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
| - Pitch detector to identify notes and frequency
- Vocal range test to find voice type
- Guitar, ukulele, violin and bass tuners
- Speaker and headphone testing
- Dead pixel and stuck pixel detection
- Spectrogram and oscilloscope visualization
- BPM detection and tempo finding
- Chord and song key finder from audio
- Camera, mouse and game controller testing
- EXIF removal and image file conversion
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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 tools run instantly in the browser with no sign-up or download required
- Complete privacy: nothing is uploaded or stored, all processing happens on your device
- Works on both phones and computers
- Requests microphone and camera access only after you initiate
- Uses Web Audio API for precise sound analysis without uploads
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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 | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 2 | 0 |
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| Citation Flow (Majestic) | 18 | 0 |
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| Referring domains (Majestic) | 10 | 0 |
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Online Ruler
Gizmetto