Free Online OCR Tool — Extract Text from Images Instantly
Easily extract text from your images with our free online OCR tool powered by Tesseract.js. Using a neural network running via WebAssembly, it recognizes text in 17 languages — including English, Chinese (Simplified and Traditional), Japanese, Korean, French, German, Spanish, Portuguese, Russian, Arabic, Hindi, Dutch, Polish, Turkish, Vietnamese, and Thai. Language data files are hosted on our own server for zero external dependencies. Perfect for scanning documents, digitizing printed materials, extracting text from screenshots, or making image-based content searchable. All processing happens in your browser for complete privacy.
Upload one or multiple images containing text by dragging them onto the upload area or clicking to browse. Batch upload supported.
Each image is processed automatically by Tesseract.js — text is recognized and displayed in the result panel. Processing time depends on image size and text density.
Copy the extracted text to your clipboard, or download it as a TXT file. Process multiple images at once for efficient digitization.
Tips for Better OCR Results
- For best OCR accuracy, use clear, high-contrast images with well-lit text. Scanned documents at 300 DPI produce excellent results.
- Handwritten text has lower recognition accuracy than printed text. For handwritten documents, use high-resolution scans for best results.
- The first time you use OCR, the Tesseract.js language data files are downloaded (~10-15 MB). After that, they're cached by your browser for instant subsequent use.
Frequently Asked Questions — OCR Text Recognition
Is the OCR tool really free?
Yes, completely free. No registration, no hidden charges, no watermarks, and no file size limits. Tesseract.js runs 100% in your browser via WebAssembly — your images are never uploaded to any server.
How does OCR work?
Our tool uses Tesseract.js, an open-source OCR engine compiled to WebAssembly. It analyzes each image using a neural network to detect text regions, then recognizes individual characters by comparing them against trained language models. The result is clean, editable text that you can copy or download.
What languages are supported?
Our tool supports 17 languages simultaneously: English, Simplified Chinese, Traditional Chinese, Japanese, Korean, French, German, Spanish, Portuguese, Russian, Arabic, Hindi, Dutch, Polish, Turkish, Vietnamese, and Thai. This covers all major writing systems — Latin, CJK (Chinese/Japanese/Korean), Cyrillic, Arabic, Devanagari, and more. All language data files are hosted on our own server (zero CDN dependencies) and load instantly.
What image formats are supported?
JPG, PNG, WebP, BMP, AVIF, GIF, TIFF, SVG, HEIC and more. For best OCR results, PNG or TIFF formats with high contrast are recommended.
Can OCR recognize handwriting?
Tesseract.js has limited handwriting recognition capability. It performs best on printed text, typed documents, and clear fonts. For handwritten text, results may vary significantly depending on handwriting clarity and image quality.
How accurate is the OCR?
For clear, high-resolution printed text, Tesseract.js achieves 95%+ accuracy. Accuracy depends on image quality, font clarity, contrast, and text size. For best results, use scanned documents at 300 DPI with good lighting and contrast.
How large of an image can I process?
Our tool handles images up to 50 megapixels (50,000,000 pixels total). Very large images may take longer to process as the OCR engine needs to analyze the entire image for text regions.