Question 1

How do I write LaTeX math equations in this editor?

Accepted Answer

Use single dollar signs $...$ for inline math (e.g., $E = mc^2$) and double dollar signs $$...$$ for display equations on their own line. The editor renders them instantly using KaTeX.

Question 2

What LaTeX math commands are supported?

Accepted Answer

This editor supports most standard LaTeX math commands via KaTeX, including fractions (\frac), integrals (\int), summations (\sum), matrices, Greek letters, subscripts, superscripts, square roots, limits, and many more.

Question 3

Is this LaTeX editor free to use?

Accepted Answer

Yes, completely free with no sign-up or installation required. It runs entirely in your browser using the KaTeX rendering engine.

Question 4

Can I combine LaTeX math with regular Markdown text?

Accepted Answer

Yes. This editor fully supports mixing LaTeX math with standard Markdown features like headings, bold/italic text, code blocks, tables, lists, and even Mermaid diagrams — all in the same document.