Fast math typesetting for the web. https://katex.org
Fast: KaTeX renders its math synchronously and doesn't need to reflow the page. See how it compares to a competitor in this speed test.
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.
KaTeX is compatible with all major browsers, including Chrome, Safari, Firefox, Opera, Edge, and IE 9–11.
KaTeX supports much (but not all) of LaTeX and many LaTeX packages. See the list of supported functions.
Try out KaTeX on the demo page