Live MathJax · Smart Palette · History

LaTeX Equation Editor (Real-time MathJax)

Type LaTeX on the left, preview on the right. Insert symbols at the caret, switch tabs for operators/greek/matrices/arrows, call templates, copy code or share the URL, and revisit recent formulas from your history.

Built for classes, papers, and reports. Uses MathJax v3 with graceful error handling so the preview never crashes.

Other languages: en | ja | zh-CN

Editor

Caret-aware palette, templates, and inline shortcuts.

Live MathJax updates as you type

Templates

One-tap inserts with caret placement.

Preview

Rendered by MathJax v3 in real time.

Ready

History (local)

FAQ

How do I prevent syntax mistakes?

Use the palette and templates to avoid missing braces. The editor also keeps the cursor where you need to type next, and the error banner points out when MathJax cannot parse the input.

Can I share or restore a formula later?

Yes. Use “Copy URL” to generate a sharable link with the LaTeX in the query string. Every edit is also stored in local history; click a past item to restore it instantly.

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FAQ

How do I prevent syntax mistakes?

Use the palette and templates to avoid missing braces. The editor also keeps the cursor where you need to type next, and the error banner points out when MathJax cannot parse the input.

Can I share or restore a formula later?

Yes. Use Copy URL to make a shareable link with LaTeX in the query string. Every edit is stored in local history, and you can click an item to restore it instantly.