Markdown Configuration

Choose the Markdown syntax your authors use, then select the rendering policy appropriate for that content. Syntax recognition and HTML trust are separate.

Choose an integration

Rust configuration separates parser and renderer options. Node.js configuration uses a camelCase options object. The defaults differ: Rust preserves raw HTML, while Node.js escapes it by default.

Choose syntax deliberately

CommonMark defines standard Markdown. GFM adds tables, task lists, strikethrough, autolinks, and a disallowed-HTML tag filter. Footnotes, callouts, front matter, and CSS-addressable tables are separate publishing features.

Enable extensions when the content requires them. Front matter, table spans, table attributes, image attributes/captions, shared key/value attributes, bracketed spans, and generated colgroups are opt-in. Marked text and inline footnotes are also opt-in. Unused enabled syntax can still add parsing work; profile measurements help evaluate that cost.

See Markdown syntax for CommonMark and GFM, the FFM guide for opt-in publishing examples, and rendering and trust for safe output policies and specification profiles.