Simplemd

SimpleMD is a fast, minimalist markdown editor that lives in your browser's side panel. Write and preview markdown in real-time with a clean, distraction-free interface.

Key Features:
• Live preview with instant rendering
• Mermaid diagram support for flowcharts, sequence diagrams, and more
• KaTeX math formula support
• Syntax highlighting for code blocks
• Multiple export options: PDF, PNG, HTML, and raw Markdown
• Copy Mermaid diagrams to clipboard (PNG)
• Google Drive sync to access your notes anywhere
• File explorer with folder organization
• Dark and light themes
• Works offline — your notes are saved locally
• Full-window mode for focused writing
• Side panel mode for quick notes

AI & Developer Tools (NEW):
• MCP integration — push markdown directly from AI coding tools like Claude Code or Cursor
• Auto-preview Mermaid diagrams generated by AI
• List and update files from your terminal
• Secure local connection — your data never leaves your machine
• Works with any MCP-compatible client
• Install with: npm install -g simplemd-mcp

Perfect for developers, writers, students, and anyone who loves markdown. Open SimpleMD from your browser's side panel and start writing immediately — or connect your AI tools and let them write for you