LaTeX Math for Markdown inside of Visual Studio Code.
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mdmath Markdown+Math

marketplace marketplace License npm

What is it ...

mdmath allows to use Visual Studio Code as a markdown editor capable of typesetting and rendering TeX math. In fact it now reuses the built in markdown viewer. KaTeX works inside as a fast math renderer.

You can install the extension directly from Visual Studio Code Marketplace.


Simplify the process of authoring and live previewing markdown documents containing math formulas. This extension is a comfortable tool for scientists, engineers and students with markdown as their first choice document format.

  • Inline math
  • Display math
  • Formula numbering
  • Inline math with tables
  • Export resulting HTML code for web usage

What is new in mdmath 2.0 ...

  • Integrated in native markdown viewer. So after installing the extension, TeX math is properly displayed in the markdown preview window.
  • Based on markdown-it plugin markdown-it-texmath.
  • Using vscode's Markdown Extension API.
  • Editor view and Preview are synchronized while scrolling.
  • Heavily reduced code size.
  • Works offline.
  • Due to markdown-it-texmath's support of different formula delimiters, these are also available and user configurable with mdmath:
    • dollars (default)
      • inline $...$
      • display $$...$$
    • brackets
      • inline \(...\)
      • display \[...\]
    • gitlab
      • inline $`...`$
      • display ```math ... ```

mdmath editing

Installation ...

... from inside of VSCode

Press F1 key inside of Visual Studio Code and type extension. Choose Extensions: Install Extension and then select the Markdown+Math extension from the list.

... from Mac & Linux Command Line

cd $HOME/.vscode/extensions
git clone
cd mdmath
npm install

... from Windows Command Line

cd  %USERPROFILE%\.vscode\extensions
git clone
cd mdmath
npm install


  • Launch VS Code, create or open a markdown file (.md).
  • Open a preview window.
  • Typeset in your markdown source window and see the preview window live updating.
  • Press Ctrl+K . or run the command Clip Markdown+Math to HTML to copy the corresponding HTML source to the underlying systems clipboard.

Default User Settings

  // Path to custom stylesheet file (css).
  "mdmath.delimiters": "dollars"


  • markdown-it: The markdown renderer also used in VS Code.
  • katex: This is where credits for fast rendering TeX math in HTML go to.
  • clipboardy: Access the system clipboard (copy/paste).


  • Formula highlighting is broken ?
    • Math formula highlighting is experimental.
    • It is implemented only for $ delimiters at present.
    • $ characters in markdown text are sometimes confused with math delimiters. Enclose them by backticks (`) then.
    • Formula highlighting is possible only for formulas on a single line. It breaks with every newline character.
    • Math highlighting is completely different from LaTeX math parsing.
  • Which functions does KaTeX support ?
  • What if I need to use the currency symbol $ also in my markup ?
    • It should be safe to use it. If in doubt escape it.
  • What are the restrictions with inline formulas ?
    • Whitespace after opening $ and before closing $ is not allowed.
    • Numeric character before opening $ and after closing $ is not allowed.
    • At least one character (whitespace ?) is required between two consecutive inline formulas.
    • Line break inside is not allowed.
  • What are the restrictions with display formulas ?
    • Not allowed inline of text.
    • Blank lines before and behind required.
    • Restrictions for inline formulas do not apply.
  • Can I use math markup in blockquotes ?
    • We can use inline and display formulas in blockquote sections. In order to avoid the blockquote symbol '>' being part of a multiline display formula, display formulas have to be written on a single line in blockquote sections.
  • Can I use math markup in code blocks ?
    • No, math markup in code blocks is shown - as expected - as markup. This is consistent now, but in contrast to mdmath versions prior to 2.0.
  • Can I access the HTML source of the markdown file ?
    • Yes. Use the Markdown: Clip Markdown+Math to Html command or the key binding ('ctrl+K .').
    • The markdown preview window has to be opened once for this in order to function properly.
    • You need to have the markdown source window activated here (not the preview window!).
    • Please note, that the resulting HTML source references 'CDN'-located remote css files. Change those references to local URL's if necessary.
  • Is PDF output supported ?
    • Not directly. In order to create *.pdf output from your Markdown you can create a *.html document first and print it then using a PDF printer or use Pandoc.
    • See Compiling Markdown into HTML.
  • Can I use custom CSS styles for the preview window ?
    • Yes. Set in user settings to the location of your custom CSS file. Its path must be relative to this extension root.
  • Cannot copy to clipboard on Linux ?
    • This may be because the upstream clipboardy needs xsel on Linux. Run sudo apt-get install xsel to install.

Thank You

The following folks helped to make mdmath even better.

  • lincr: Helped with fixing problems with mdmath.clipToHtml under Ubuntu.
  • TonySFU: Helped with fixing encoding problems with Chinese language under macOS when using mdmath.clipToHtml.
  • floatdrop: Verifying that clipboardy is a better alternative to copy-paste by implementing.
  • zhanglix: Helped with fixing the newline bug with gitlab delimiters.


See .github/




Markdown+Math for VS Code is licensed under the MIT License

© Stefan Gössner