[1] KaTeX – The fastest math typesetting library for the web () <https://khan.github.io/KaTeX/>

Fast: KaTeX renders its math synchronously and doesn’t need to reflow the page.

Print quality: KaTeX’s layout is based on Donald Knuth’s TeX, the gold standard for math typesetting.

Self contained: KaTeX has no dependencies and can easily be bundled with your website resources.

Server side rendering: KaTeX produces the same output regardless of browser or environment, so you can pre-render expressions using Node.js and send them as plain HTML.