LaTeX editor features


Spell checking during LaTeX editing is available for several languages. You can enable/disable Spellcheck and change the language for a particular file by opening the Settings frame as shown:


Note that the Spellcheck feature is also available in Markdown and HTML editors.

Word count

CoCalc can show you current word count statistics generated by texcount. In order to see them, change one of the frames or created a new one in the Frame editor. Select “Word Count” as shown below:


LaTeX Engines

  • latexmk + PDFlatex: the default configuration, works in most cases
  • latexmk + XeLaTeX: this is useful for foreign languages with many special characters.
  • latexmk + LuaTex: uses the LuaLaTeX engine.


UTF8: the build process runs in a Linux environment. All edited documents are assumed to be encoded as UTF-8. Therefore, depending if you compile via PDFLaTeX or XeLaTeX, the following encoding defintions are the preferred choices:

  • PDFLaTeX:

  • XeLaTeX or LuaTeX:


The default template already selects the correct configuration for you.