Tesseract.js 7.0.0 / tesseract.js-core 7.0.0, Apache-2.0; bundled notices accompany the worker/core.
Sources: https://github.com/naptha/tesseract.js and https://github.com/naptha/tesseract.js-core
Japanese/English language data: tessdata_fast 4.1.0, Apache-2.0. https://github.com/tesseract-ocr/tessdata_fast/tree/65727574dfcd264acbb0c3e07860e4e9e9b22185