@create-markdown/mdx

Convert markdown blocks to MDX with component mappings. Part of the create-markdown monorepo.

Installation

# Using bun
bun add @create-markdown/mdx

# Using npm
npm install @create-markdown/mdx

# Using yarn
yarn add @create-markdown/mdx

# Using pnpm
pnpm add @create-markdown/mdx

Quick Start

Convert Markdown to MDX

import { markdownToMDX } from '@create-markdown/mdx';

const markdown = `# Hello World

This is **bold** and *italic* text.

\`\`\`typescript
const greeting = "Hello!";
\`\`\`
`;

const mdx = markdownToMDX(markdown);
console.log(mdx);
// ---
// title: "Hello World"
// ---
//
// # Hello World
//
// This is **bold** and *italic* text.
//
// ```typescript
// const greeting = "Hello!";
// ```

Use Custom Components

import { markdownToMDX } from '@create-markdown/mdx';

const mdx = markdownToMDX(markdown, {
  components: {
    codeBlock: 'CodeBlock',
    callout: 'Callout',
    image: 'Image',
  },
  imports: [
    "import { CodeBlock } from '@/components/code-block'",
    "import { Callout } from '@/components/callout'",
    "import Image from 'next/image'",
  ],
});

Convert Blocks Directly

import { parse } from '@create-markdown/core';
import { blocksToMDX } from '@create-markdown/mdx';

const blocks = parse('# Hello\n\nWorld');
const mdx = blocksToMDX(blocks, {
  frontmatter: {
    title: 'My Page',
    description: 'A sample page',
  },
});

Batch Convert Files

import { convertDirectory, docsPreset } from '@create-markdown/mdx';

// Convert all .md files in a directory to .mdx
const results = await convertDirectory(
  './content',
  './pages',
  {
    ...docsPreset,
    overwrite: true,
  }
);

console.log(`Converted ${results.length} files`);

API Reference

markdownToMDX(markdown, options?)

Converts a markdown string to MDX.

markdownToMDXWithMeta(markdown, options?)

Converts markdown and returns metadata (title, headings for TOC).

blocksToMDX(blocks, options?)

Converts block array to MDX string.

blocksToMDXWithMeta(blocks, options?)

Converts blocks and returns metadata.

convertFile(inputPath, outputPath, options?)

Converts a single markdown file to MDX.

convertDirectory(inputDir, outputDir, options?)

Batch converts all markdown files in a directory.

Options

interface MDXSerializeOptions {
  // Component name mappings
  components?: {
    codeBlock?: string;   // e.g., 'CodeBlock'
    callout?: string;     // e.g., 'Callout'
    table?: string;       // e.g., 'Table'
    image?: string;       // e.g., 'Image'
    heading?: string;     // e.g., 'Heading'
    link?: string;        // e.g., 'Link'
  };
  
  // Use JSX syntax for components
  useJSX?: boolean;
  
  // Import statements to prepend
  imports?: string[];
  
  // Frontmatter metadata
  frontmatter?: {
    title?: string;
    description?: string;
    [key: string]: unknown;
  };
  
  // Extract title from first H1
  extractTitle?: boolean;
}

Presets

docsPreset

Pre-configured options for documentation sites:

import { markdownToMDX, docsPreset } from '@create-markdown/mdx';

const mdx = markdownToMDX(markdown, docsPreset);

minimalPreset

Minimal MDX without custom components:

import { markdownToMDX, minimalPreset } from '@create-markdown/mdx';

const mdx = markdownToMDX(markdown, minimalPreset);

License

MIT