What this tool does
Equation Code Builder helps you compose LaTeX formulas and export them as Markdown, HTML fragments, full standalone HTML, or MathML from one local-first browser workspace.
Equation editor
Mix direct LaTeX input with UI-assisted building. Examples apply immediately, and Ctrl/Cmd + Z / Shift + Ctrl/Cmd + Z handles undo and redo.
Input tools
Switch between quick insert buttons, structural templates, and a form-based builder.
Quick insert
Click to insert commonly used symbols at the cursor.
Structure templates
If text is selected, the template wraps it first. Otherwise, a placeholder is inserted.
Fraction
Scripts
Root
Sum / Product
Integral
Wrap selection
Matrix
Cases
Preview and output code
Check the rendered formula first, then copy the output format you need.
Live preview
The current formula renders directly above the output code.
Checking preview engine...
Enter a formula to render it here.
Markdown
Creates the current formula as a Markdown block using $$...$$.
Change the dropdown to see a different export format. You can drag-select only part of the box if you want to copy just one segment.