KaTeX – The fastest math typesetting library for the web

Simple API, no dependencies – yet super-fast on all major browsers. 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.