| What it does | Free browser tools for audio, display, device, image and measuring tasks that run instantly with no sign-up
| Full-screen white light in your browser
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| Stage | Startup
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| Founded | 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 | - 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
| - Full-screen white light display
- Adjustable color temperature from 2,000 K to 9,000 K
- Brightness control
- Timer functionality
- Keep screen on to prevent dimming
- Dead pixel test with five colors
- Refresh rate testing
- Keyboard shortcuts for quick access
- Multiple color options
- Download images in multiple resolutions
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| What makes it different | - 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
| - Runs entirely in browser with no app or sign-up required
- Works on iPhone and Android when added to home screen
- Completely free with no paid plans or subscriptions
- Customizable warmth and brightness for different uses
- Multiple screen test and diagnostic tools included
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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 | 1 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 0 | 0 |
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| Referring domains (Majestic) | 0 | 0 |
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Gizmetto
White Screens