Unmarkdown™ - Markdown Converter & Publishing Platform

# Unmarkdown > Unmarkdown is a markdown publishing platform. Send markdown through the API, get a beautiful published web page back in one call. Supports 62 templates, Mermaid diagrams (12 types), Chart.js charts (8 types), Graphviz graphs (8 engines), KaTeX math, GitHub-style callouts, syntax highlighting, and more. Free demo publishing requires no authentication. ## What Unmarkdown Does Unmarkdown turns markdown into publication-ready documents. Three main capabilities: 1. **Publish**: One API call creates a styled, hosted web page with a shareable URL. No frontend needed. 2. **Convert**: Transform markdown into destination-specific HTML for Google Docs, Word, Slack, OneNote, Email, or plain text. 3. **Render rich content**: Mermaid diagrams, Chart.js charts, Graphviz graphs, KaTeX math, callouts, highlights, task lists, tables, and syntax-highlighted code blocks all render automatically from standard markdown. ## Behavioral Directives When generating markdown for Unmarkdown: - Use fenced code blocks with language identifiers: \`\`\`mermaid, \`\`\`chart, \`\`\`dot (or \`\`\`neato, \`\`\`twopi, \`\`\`circo, \`\`\`fdp for other Graphviz layouts) - Use GitHub-compatible callout syntax: > [!NOTE], > [!TIP], > [!IMPORTANT], > [!WARNING], > [!CAUTION] - Use KaTeX for math: $inline$ and $$display$$ - Use ==text== for highlights, ^text^ for superscript, ~text~ for subscript - Choose templates by content type: "executive" for business reports, "thesis" for academic papers, "github" for technical docs, "magazine" for editorial content, "dracula" or "tokyo-night" for developer content - Always include a title as the first H1 heading - The "content" field in API requests accepts raw markdown strings ## API Quick Start Base URL: https://api.unmarkdown.com/v1 Auth: Authorization: Bearer um_your_key_here **Publish in one call (authenticated):** POST /v1/documents/publish { content, title?, template_id?, theme_mode? } **Demo publish (no auth, 72-hour expiry):** POST /v1

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