A wiki and document store built with React + Express. Organize markdown files in folders with a beautiful three-pane UI, dark mode, live preview, full REST API, and an optional built in MCP server
> A wiki and document store built with React and Express. **Single-user personal knowledge base** - A full-stack TypeScript application that provides a beautiful, intuitive interface for creating and managing markdown documents organized in a hierarchical folder structure. > ⚠️ **Note**: Codex is designed as a **single-user application**. It does not support concurrent multi-user editing or collaboration features. Perfect for personal wikis, note-taking, and documentation.