Google Maps for Codebases: Paste a GitHub URL, Ask Anything

Navigating a large codebase for the first time is painful. You clone the repo, realize there are 300 files, and have no idea where anything lives. You can ask an AI assistant, but it burns through context fast and you never know if it hallucinated a file path that does not even exist. Codebase Navigator solves this. Paste a URL, ask anything in plain English, and watch a real dependency graph built from actual import statements appear in real time. It is built using CopilotKit, Zenflow, GitHub API and React Flow. You can run it completely free using Ollama locally. In this blog, we will go through the architecture, the key patterns and how everything works end-to-end. What are we building? Codebase Navigator lets you paste any public GitHub repo URL and ask questions about it in plain English. Instead of getting a wall of text back, you get four panels that all update at once. Panel What it does Graph Canvas Live dependency graph built from real import statements Code Viewer File conte