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Description
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
Reviews
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Permissions (6)
Permissions
alarmsℹ Can schedule periodic background tasks identityℹ Can use your Google account identity nativeMessagingℹ Can communicate with programs on your computer sidePanel storageℹ Can store data locally in your browser unlimitedStorage
Details
| Version | 1.3.2 |
| Updated | Feb 19, 2026 |
| Size | 3.36MiB |
| First Seen | Mar 28, 2026 |
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