Markdown Editor with Chat

A lightweight, self-contained markdown editor that serves files from a local directory with optional OpenClaw gateway chat integration.

Features

• Filesystem-based: Point to any directory containing markdown files
• No database: Files are the source of truth
• Folder navigation: Browse nested directories
• Live preview: See rendered markdown as you type
• Optional chat: Connect to OpenClaw gateway for AI assistance
• Zero external dependencies: Pure Node.js, self-contained HTML

Quick Start

# Start with CLI arguments (recommended)
node scripts/server.mjs --folder /path/to/markdown --port 3333

# Or short form
node scripts/server.mjs -f /path/to/markdown -p 3333

# With gateway chat enabled (via env vars)
export OPENCLAW_GATEWAY_URL=http://127.0.0.1:18789
export OPENCLAW_GATEWAY_TOKEN=your-token
node scripts/server.mjs -f /path/to/markdown

Then open http://localhost:3333 in your browser.

CLI Arguments

Argument	Short	Required	Default	Description
--folder	-f	Yes*	-	Directory containing markdown files
--port	-p	No	3333	Server port
--host	-h	No	127.0.0.1	Server host (localhost only by default)
--help		No		Show help message

*Required unless MARKDOWN_DIR env var is set.

Environment Variables (fallback)

Variable	Required	Default	Description
MARKDOWN_DIR	Yes*	-	Directory containing markdown files
PORT	No	3333	Server port
HOST	No	127.0.0.1	Server host
OPENCLAW_GATEWAY_URL	No	-	Gateway URL for chat feature
OPENCLAW_GATEWAY_TOKEN	No	-	Gateway auth token

CLI arguments take precedence over environment variables.

Security

• Localhost only by default: Server binds to 127.0.0.1, rejects public IPs
• Same-origin only: No CORS headers, browser enforces same-origin policy
• Path traversal protection: Cannot access files outside MARKDOWN_DIR
• No credentials in code: All secrets via environment variables
• Gateway proxy: Tokens never exposed to browser

This is a local development tool. The API is intentionally simple (no auth) because it's designed for localhost use on directories you control.

API Endpoints

• GET / - Serves the editor UI
• GET /api/files - List files and folders
• GET /api/files/:path - Get file content
• PUT /api/files/:path - Save file content
• POST /api/files/:path - Create new file
• POST /api/chat - Proxy chat to gateway (if configured)

Use Cases

• Browse and edit OpenClaw pearls
• Personal markdown wiki
• Note-taking with AI assistance
• Documentation browser