1.freeCodeCamp / freeCodeCampfreeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.learn-to-codenonprofitsprogrammingnodejsreactd3+9 moreTypeScriptBSD-3-CLAUSE458K total48K forks+6,154 starsfrom 452,219 · score 8.73
2.KaTeX / KaTeXFast math typesetting for the web.mathmath-typesettinglatexjavascriptkatexTypeScriptMIT20K total1.3K forks+260 starsfrom 20,227 · score 5.56