Chemai — LaTeX Chemistry Editor

Type LaTeX (use \ce{...} for formulas) to render chemical equations. Export to PNG/PDF, copy LaTeX, and use templates/autocomplete.

Mode:
Templates:
Start typing \ce{ and press Ctrl+Space to open autocomplete.
Rendered output will appear here.

Worked Examples & Templates

Use these LaTeX snippets with \ce{} (mhchem) for fast, accurate chemical typesetting. Follow the steps to render and export.

1) Balance and typeset a combustion reaction (Ethanol)

  1. Insert into the editor: \ce{C2H5OH + 3O2 -> 2CO2 + 3H2O}
  2. Click Render (MathJax mode) to see a beautifully typeset equation.
  3. Export with Export PNG or Export PDF for reports or slides.

Tip: Use -> for forward reactions, <=> for equilibrium, and include states like (g), (l), (s), (aq).

2) Equilibrium reaction with an expression for Ka

  1. Reaction: \ce{CH3COOH + H2O <=> CH3COO^- + H3O^+}
  2. Expression: $$K_a = \frac{[\ce{CH3COO^-}][\ce{H3O^+}]}{[\ce{CH3COOH}] }$$
  3. Click Render to typeset both the reaction and the math expression.

Charges use superscripts: \ce{Fe^{3+}}; isotopes: \ce{^{14}_6C}; hydrates: \ce{CuSO4\cdot5H2O}.

3) Redox half‑reaction in acidic solution

  1. Insert: \ce{MnO4^- + 8H^+ + 5e^- -> Mn^{2+} + 4H2O}
  2. Switch to Plain text mode if you need quick unicode subscripts/superscripts for emails or chats.
  3. Use Copy LaTeX or Copy Plain Text to reuse in other editors.

Quick insert templates

Need symbols? Try \alpha, \beta, \Delta H, or matrices/align with standard LaTeX math. If a line doesn’t show math, wrap it in $$ ... $$.