ocr-local

You can extract text from images locally by running a Node.js script with the tesseract.js library. This offline OCR approach requires no API keys and processes documents or screenshots directly on your machine, returning plain text or JSON.

Yes, offline OCR with tesseract.js supports mixed Chinese and English text recognition. You can specify language codes like chi_sim, chi_tra, and eng to extract text from photos or documents containing mixed-language content.

The best way to perform image-to-text conversion privately is using a local OCR script. By leveraging tesseract.js, the extraction executes entirely offline without external calls, ensuring your document and screenshot data remains secure.

Limitations of using tesseract.js for offline document scanning include requiring a local Node.js environment and relying on the accuracy of the Tesseract OCR engine. It supports specific language codes and may require clear image inputs for accurate text extraction.

Yes, you can get JSON output when extracting text from screenshots locally. The OCR script processes images using tesseract.js and can format the recognized Chinese or English text into structured JSON or plain text outputs.