{"library":"tesseract.js-core","type":"library","category":null,"description":"tesseract.js-core is the foundational WebAssembly (WASM) module that powers the higher-level tesseract.js OCR library. It compiles the original Tesseract C++ engine to JavaScript and WASM using Emscripten, enabling Optical Character Recognition directly in browser and Node.js environments. The current stable version is `7.0.0` as of December 2025. This package provides the low-level API for interacting with the Tesseract engine, offering optimized builds like 'Relaxed SIMD' for performance on supported hardware and 'LSTM-only' builds for reduced size when only the modern LSTM OCR engine is needed. It typically releases new major versions to incorporate updates from the upstream Tesseract C++ project and Emscripten. Key differentiators include its pure JavaScript/WASM implementation, enabling client-side OCR, and direct access to Tesseract's core functionality, which is crucial for custom integrations or highly performance-sensitive applications that bypass the abstractions of `tesseract.js`.","language":"javascript","status":"active","version":"6.1.2","tags":["javascript","ocr","tesseract","emscripten","port","c++","api","recognize"],"last_verified":"Wed May 27","install":[{"cmd":"npm install tesseract.js-core","imports":["import TesseractCoreInit from 'tesseract.js-core/tesseract-core';","import TesseractCoreSIMDInit from 'tesseract.js-core/tesseract-core-simd';","import TesseractCoreLSTMInit from 'tesseract.js-core/tesseract-core-lstm';"]},{"cmd":"yarn add tesseract.js-core","imports":[]},{"cmd":"pnpm add tesseract.js-core","imports":[]}],"homepage":null,"github":"https://github.com/naptha/tesseract.js-core","docs":null,"changelog":null,"pypi":null,"npm":"https://www.npmjs.com/package/tesseract.js-core","openapi_spec":null,"status_page":null,"smithery":null,"compatibility":{"summary":{"python_range":"18–22","success_rate":0,"avg_install_s":null,"avg_import_s":null,"wheel_type":null},"url":"https://checklist.day/v1/registry/tesseract.js-core/compatibility"}}