OCR 文本提取器
从任何图片中提取多语言文本。
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About OCR 文本提取器
OptiPix OCR Text Extractor uses Tesseract.js, the leading open-source OCR engine compiled to WebAssembly, to recognize and extract text from images directly in your browser. It supports over 100 languages including English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, and many more. Simply drop an image containing text — a document scan, a screenshot, a photo of a sign, a receipt — and the tool will extract all readable text in seconds. The extracted text is fully editable, so you can correct any recognition errors before copying or downloading. Unlike cloud OCR services, your documents never leave your device, making this ideal for sensitive documents like medical records, legal papers, or financial statements. The Tesseract engine downloads language data on first use (about 15 MB per language) and caches it for offline use. Recognition accuracy is excellent for clean printed text and reasonable for handwritten or stylized fonts.
How It Works
The tool uses Tesseract.js, a WebAssembly port of the Tesseract OCR engine. It preprocesses the image, applies text detection algorithms to locate text regions, then uses trained neural network models for each language to recognize individual characters and words with high accuracy.
Use Cases
- •Digitize printed documents and receipts
- •Extract text from screenshots for editing
- •Convert photos of whiteboards or notes to text
- •Extract text from signs and labels in foreign languages
- •Archive handwritten notes as searchable text