Auto Blur Licence Plates
Recognise the text of a licence plate and cover it.
Redaction & masking Heavy client-side (WASM) tesseract.js OCR + plate shape heuristic + Canvas
Tool preview
How to use it
- 01
Drop a photo of a vehicle.
- 02
Plate-like text is recognised and covered.
- 03
Download the result.
Limitations
- ! There is no dedicated plate detector: the tool recognises text and keeps 5–8 character letter/digit mixes.
- ! Tilted, dirty or partially hidden plates may not be recognised.
- ! The OCR engine (~15 MB with the English language data) is downloaded from a public CDN on first use.
FAQ
Why use OCR instead of a plate model?
A plate-specific model is several MB on its own. Recognising the text and filtering by shape keeps the download smaller and covers the same common cases.
It covered a sign instead of the plate. What now?
Check the preview: any text that looks like a plate is covered. Use the manual blackout tool for precise control.
Is the photo uploaded?
No.
Files never leave your device
Processing happens in your browser using the File API, WebAssembly and Web Workers. There is no upload endpoint.
Technical details
- Processing
- Heavy client-side (WASM)
- Implementation
- tesseract.js OCR + plate shape heuristic + Canvas
- Category
- Redaction & masking
- Network requests
- None while processing