GitNexus

Simply put, it’s a “code map generator.” You just drop a GitHub repo link or a ZIP file into it, and it automatically scans your code locally (in your browser or on your computer) to generate a clear, interactive knowledge graph. This visual map shows you exactly how functions call each other, how modules depend on one another, and how data flows through your project.

It tackles the frustration of diving into unfamiliar codebases or legacy projects without a clear roadmap. Instead of manually searching through files or relying on AI that often misses context due to limited prompts, this tool gives you an instant architectural overview. It also supercharges AI coding assistants like Cursor or Claude by providing them with precise, structured code context, drastically reducing blind edits.

Developers taking over new or legacy projects; technical leads who need to quickly grasp code logic; AI-assisted coders suffering from context window limits; and teams or individuals who prioritize privacy and refuse to upload source code to third-party servers.

1. Quickly mapping out the core modules and call chains of a newly cloned open-source project.

2. Feeding the project graph to AI tools like Cursor or Claude Code to generate more accurate, context-aware code suggestions.

3. Dragging a ZIP file into the browser to temporarily analyze the internal structure of a third-party library.

4. Conducting internal code audits or architecture reviews with visual dependency tracking.

Runs entirely offline locally, ensuring your source code and generated graphs never leave your machine; offers both a zero-install web UI for quick demos and a powerful CLI/MCP mode for deep IDE integration; features a built-in AI chat that lets you query the graph directly, making code exploration much faster than traditional text searches.

The web version is plug-and-play—just open the link and drag in your files, requiring zero setup. The CLI version requires a basic Node.js environment and a single terminal command, perfect for developers comfortable with command-line tools. No account registration or API keys needed, and completely free for non-commercial use.