| What it does | Free on-screen measuring tools that run in your browser
| Free online tools for file conversion and processing
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| Stage | Not given
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| IN
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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
| - Image Enhancer—upscale images 2X, 4X or 8X with AI or classic mode
- PDF to Word conversion with OCR for scanned documents
- Image Background Remover with on-device AI
- Audio Noise Remover for background hiss and room noise
- Video Quality Enhancer—upscale clips up to 4X with denoising
- Merge and split PDF files with lossless processing
- Black & White to Colour AI colorization
- Multiple image format conversions in browser
- Audio format conversion with quality options
- AI-powered caption and metadata generation
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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
| - 82 tools in one free collection
- Files stay private—most tools run entirely in your browser without uploading
- Advanced AI features like super-resolution, colorization and noise removal on-device
- Supports specialized formats like CAD files and EPS for design workflows
- OCR capability for converting scanned documents to editable text
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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 | 9 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 7 |
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| Citation Flow (Majestic) | 18 | 24 |
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| Referring domains (Majestic) | 10 | 9 |
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Online Ruler
PKD Ventures