OCR

https://github.com/naptha/tesseract.js#tesseractjs 

<script src='https://unpkg.com/tesseract.js@4.0.2/dist/tesseract.min.js'></script>

import('https://unpkg.com/tesseract.js@4.0.2/dist/tesseract.min.js') will work as well, dumping Tesseract on the global scope

Tesseract.recognize(
  'https://tesseract.projectnaptha.com/img/eng_bw.png',
  'eng',
  { logger: m => console.log(m) }
).then(({ data: { text } }) => {
  console.log(text);
})

And also in observable: https://observablehq.com/@kreijstal/tesseract-js-v2-alpha