•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.