GitNexus — Zero-Server Code Intelligence Knowledge Graph

Introduction

GitNexus is a client-side application that builds interactive knowledge graphs from codebases. It parses source files, identifies relationships between modules, functions, and types, then renders them as a navigable graph. A built-in Graph RAG agent lets you ask natural language questions about the codebase structure.

What GitNexus Does

• Ingests GitHub repositories or uploaded ZIP files directly in the browser
• Parses code to extract entities like classes, functions, imports, and dependencies
• Generates an interactive force-directed knowledge graph visualization
• Provides a Graph RAG agent for natural language codebase Q&A
• Runs entirely client-side with no server or database required

Architecture Overview

GitNexus operates as a single-page TypeScript application. A language-aware parser extracts abstract syntax tree nodes and cross-file references, feeding them into an in-memory graph data structure. The visualization layer uses a WebGL-accelerated force-directed layout for smooth interaction with large graphs. The RAG agent traverses graph edges to retrieve context for LLM-based question answering.

Self-Hosting & Configuration

• Clone the repository and install Node.js dependencies
• Run the development server or build a static bundle for deployment
• No backend server or database is required
• Configure LLM API keys in the settings panel for the RAG agent
• Supports Ollama for fully local inference without external APIs

Key Features

• Fully client-side processing with zero server dependency
• Supports JavaScript, TypeScript, Python, Go, Rust, and Java codebases
• Interactive graph with zoom, filter, and search capabilities
• Natural language Q&A about code structure via Graph RAG
• Export graph data as JSON for use in other tools

Comparison with Similar Tools

• Sourcegraph — server-based code intelligence; GitNexus runs entirely in the browser
• Repomix — flattens repos for LLM input; GitNexus builds navigable graphs
• DeepWiki — generates wiki documentation; GitNexus focuses on visual graph exploration
• GraphRAG by Microsoft — general knowledge graph RAG; GitNexus is purpose-built for code

FAQ

Q: How large a codebase can it handle? A: Typical repositories under 100K lines render smoothly; larger codebases may require filtering by directory.

Q: Does it need an internet connection? A: Only for fetching GitHub repos. ZIP uploads and Ollama-backed Q&A work fully offline.

Q: Which languages are supported? A: JavaScript, TypeScript, Python, Go, Rust, and Java are supported with tree-sitter parsers.

Q: Can I use it with private repositories? A: Yes, upload a ZIP file of any private codebase and processing stays entirely in your browser.

Sources

• https://github.com/abhigyanpatwari/GitNexus