MCP Mermaid vs Markmap MCP Server

generate_mermaid_diagram

Generate mermaid diagram and chart with mermaid syntax dynamically. Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. The main purpose of Mermaid is to help documentation catch up with development.

markdown_to_mindmap

Convert structured Markdown (headings # and nested lists -) into an interactive mind map HTML file, with optional server-side PNG/JPG/SVG export. Use when the user wants a visual mind map/outline of structured content (architecture, plans, notes, hierarchies), or asks to visualize / mindmap / diagram. Do not use for flat unstructured text (restructure first), or to list/read existing outputs (use list_mindmaps / get_mindmap). Behavior: - WRITES files under the configured output dir. HTML is always written; image formats write an extra file. Reusing filename overwrites. - html is fast (<1s). png/svg/jpg launch headless Chromium via Playwright (5–15s; requires: npm install playwright && npx playwright install chromium). - Local only — no external APIs or third-party keys. Open mode=never: The server never opens the browser. - Offline=false (server config). Response: - JSON {"htmlFilePath":"<path>","filePath":"<path>"} — htmlFilePath is always the HTML source; filePath is the primary artifact (HTML or image). - Return mode=path: Paths JSON only — no inline content. - Errors: isError:true with {"error","message"}.