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The editor is the heart of Typeset, where you write and edit your LaTeX documents. Built on CodeMirror, it provides a powerful editing experience with syntax highlighting, collaborative cursors, and intelligent formatting.

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Editor features

The LaTeX editor includes:
  • Syntax highlighting for LaTeX commands, environments, and math expressions
  • Line wrapping to keep your code readable without horizontal scrolling
  • Tab support with proper indentation handling
  • Theme support that automatically adapts to light/dark mode
  • Real-time collaboration with visible user cursors and selections
The editor uses CodeMirror 6 with the codemirror-lang-latex language package for LaTeX-specific syntax support.

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Writing LaTeX

1

Start typing

Click anywhere in the editor panel (center panel) and start writing your LaTeX code. The editor provides syntax highlighting as you type.
2

Use LaTeX commands

Type LaTeX commands like \section{}, \textbf{}, or math environments. The syntax highlighting helps you identify commands, arguments, and environments.
3

Format your code

Press Tab to indent your code. The editor respects LaTeX formatting conventions and maintains proper indentation.

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Collaborative editing

When multiple users work on the same document, the editor shows:
  • Colored cursors representing each collaborator
  • User names displayed near their cursor position
  • Real-time updates as other users type
  • Selection highlights showing what others have selected
Each collaborator is assigned a unique color that identifies their cursor and selections throughout the document.

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Review mode

When the AI assistant suggests changes to your document, the editor switches to a side-by-side comparison view that shows:
  • Your current document on the left
  • The AI’s suggested version on the right
  • Visual diff highlighting to see exactly what changed
1

Review the changes

Compare the two versions side-by-side. Changed lines are highlighted so you can quickly spot modifications.
2

Accept or reject

Click Accept to apply the changes, or Reject to keep your original document. The buttons appear at the bottom of the editor panel.
3

Continue editing

After accepting or rejecting, the editor returns to normal mode and you can continue editing.

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Keyboard shortcuts

The editor supports standard keyboard shortcuts:
  • Tab - Insert tab or indent
  • Cmd/Ctrl + Z - Undo
  • Cmd/Ctrl + Shift + Z - Redo
  • Cmd/Ctrl + F - Find
  • Cmd/Ctrl + H - Find and replace

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Theme customization

The editor automatically adapts to your system theme:
  • Light mode uses the GitHub Light theme with clear, readable colors
  • Dark mode uses the GitHub Dark theme with reduced eye strain
Theme switching happens instantly when you change your system settings or toggle the theme in Typeset.

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