What is OCR?
OCR (Optical Character Recognition) is technology that extracts text from images. Our tool uses Tesseract.js — a WebAssembly port of Google's Tesseract OCR engine — running entirely in your browser. It can recognize text in 100+ languages from screenshots, scanned documents, and photos.
내 데이터는 비공개인가요?
Yes — absolutely. All OCR processing happens directly in your browser using WebAssembly. Your images and the extracted text never leave your device. Nothing is uploaded to any server. Even the language data files are only downloaded once and cached locally.
Supported formats
JPEG, PNG, WebP, and BMP images are supported. For best results with scanned documents, ensure the image is clear and well-lit. Higher resolution images (300 DPI+) yield the most accurate text extraction.