Tesseract.js Core: WebAssembly OCR Engine

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`.