Visual LaTeX Formula Builder
Assemble mathematical formulas visually with categorized symbol palettes, live KaTeX preview, and one-click MathML, Markdown, SVG, and PNG export.
How to Assemble Equations Visually
Whether you're creating equations for academic publications, STEM homework, or lecture presentations, LaTeXTool makes formula construction intuitive:
Click Symbol Palette
Browse fractions, integrals, Greek letters, and operators without having to remember every LaTeX command.
Live Real-Time Feedback
Every keystroke updates the KaTeX preview in less than 5 milliseconds with syntax highlighting.
Export to LaTeX or Word
Copy code directly into your TeX document or copy MathML to paste into Word, Pages, and Google Docs.
Writing LaTeX Equations: The Essentials
LaTeX has two math modes, and picking the right one matters. Inline math — dollar signs around your code, like $\frac{1}{2}$ — keeps the formula inside a sentence and renders it compactly. Display math — \[\frac{1}{2}\] — centers the formula on its own line at full size. In this editor you can paste either form; the preview detects the delimiters and renders accordingly.
Most equations are built from a small set of patterns. Fractions use\frac{numerator}{denominator}; superscripts and subscripts use^ and _, with braces for multi-character groups (x_{i+1}). Greek letters are backslash commands (\alpha, \Omega), and multi-line derivations use \begin{aligned} ... \end{aligned} with& marking the alignment point and\\ ending each line.
When the preview shows a syntax notice, the fix is usually one of three things: a missing closing brace, a command typed outside math mode, or a package-only command like \mathbb that needsamssymb in a real document (the preview handles it, but add the package when you paste into Overleaf). The symbol palette above the editor inserts correctly-formed commands, so clicking is often faster — and safer — than typing from memory.
Equation Editor FAQ
How do I insert fractions and square roots?▼
In the palette above the editor, select the "Fractions & Roots" tab and click "a/b" for \frac{a}{b} or "√x" for \sqrt{x}. Replace the placeholder variables with your values.
Can I paste MathML into Microsoft Word?▼
Yes! Click "Copy MathML" in the editor. Open Microsoft Word, press Ctrl+V (or Cmd+V on Mac), and Word will automatically format the equation into native editable Word Equation format.
Does this editor support multi-line equations?▼
Yes, you can use environments like \begin{aligned} ... \end{aligned} or \begin{cases} ... \end{cases} for multi-line proofs and piecewise functions.
How do I use these equations in Notion or Obsidian?▼
Click "Copy Markdown" in the editor, then paste the $$ ... $$ block straight into Notion or Obsidian. Both render it as a live math equation with no extra steps.
Does this work with Google Docs?▼
Yes. Click "Copy MathML" and paste into Google Docs to get a native editable equation. For slides, download a transparent PNG or vector SVG instead.