MarkdownEDITOR

GitHub Flavored Markdown in this editor

CommonMark is the baseline. GitHub Flavored Markdown (GFM) adds tables, task lists, strikethrough, and autolinks. This preview also understands several GitHub README extras so documentation looks closer to github.com.

Supported GFM

  • Pipe tables with left, center, and right alignment
  • Task lists with nested checkboxes
  • Strikethrough with double tildes
  • Autolinked URLs
  • Footnotes (`[^1]`)
  • GitHub alerts (NOTE, TIP, IMPORTANT, WARNING, CAUTION)
  • Emoji shortcodes such as `:rocket:`

Beyond GFM

Fenced mermaid blocks render as diagrams. Dollar-delimited math uses KaTeX, so$E = mc^2$works in the preview. Raw HTML is disabled on purpose to avoid XSS.

Try it

Open the markdown editor, load the example template from Edit, and scroll the preview. Help → Markdown syntax has the core CommonMark markers.