LaTeX Live Preview — See It As You Type

See your math rendered instantly as you type LaTeX into any text field on any website. No reload, no separate sandbox.

Stop guessing whether your LaTeX is right. LaTeX Live Preview renders your math in real time, right where you're typing — no copy-pasting into a separate sandbox, no submitting an answer blind and hoping the brackets lined up. WHAT IT DOES Type LaTeX into any text field on any website — a homework portal, Gmail, a forum reply, Google Docs, a plain search box — and a small live preview appears showing exactly what your equation will look like, rendered properly with real fraction bars, radicals, exponents, and symbols. No reload. No switching tabs. No account required. WHY THIS IS DIFFERENT Most LaTeX tools on the Chrome Web Store are built to view math that's already been written — rendering .tex files, GitHub Markdown, or existing web pages. LaTeX Live Preview is built for the moment before that: while you're actually composing your answer, your notes, or your email, so you catch a mistake before you hit submit instead of after. It's also the only tool in this category that pairs live rendering with genuinely free, on-device AI — not a bolt-on that requires you to bring your own paid API key. TWO AI FEATURES, POWERED BY YOUR OWN BROWSER ✨ Plain English → LaTeX Don't remember the exact syntax for a summation or a derivative? Just describe it in plain English — "the derivative of x squared" — and it's converted to correct LaTeX and inserted right where you're typing. 💡 Explain Click Explain on any rendered equation to get a clear, plain-English breakdown of what it actually means — genuinely useful when you're staring at a formula a professor handed you with zero context. Both features run entirely on-device using Chrome's built-in AI (Gemini Nano). Nothing is sent to a server. No signup. No API key. No per-use cost — ever. FREE VS. FULL Free, forever: - Live rendering in any text field, on any website - Support for $$...$$, \(...\), and \[...\] delimiters out of the box - Optional $...$ support too (one tap in settings) — off by default since a lone $ is hard to tell apart from a price like "$5," but easy to turn on if you want it - Multiple equations per field - Works with fractions, roots, summations, integrals, matrices, and more Full version — $4.99, one time: - Plain English → LaTeX conversion - Explain any equation in plain English - No subscription. No recurring charge. Yours for life. WHO IT'S FOR Students working through homework in any online portal, teachers building quizzes and worksheets, tutors, forum answerers, grad students, and anyone who's ever typed LaTeX into a box and hit submit while silently praying it rendered correctly. PRIVACY Live preview rendering happens entirely in your browser using KaTeX — nothing about your equations is ever sent anywhere. The AI features use Chrome's on-device model, so even those never leave your machine. Built by the team behind StartWithMath.com, an AI-powered math learning platform spanning middle school through college-level math.