GitNexus
Runs entirely in your browser and turns any git repo into an interactive knowledge graph with a built-in AI agent for exploring the code.
🔗 Visit GitNexus
Description
Understanding an unfamiliar codebase usually means clicking through files one by one, hoping you can reconstruct how everything connects in your head. GitNexus flips that around: drop in a repository and it builds a visual map of the entire codebase — functions, classes, imports, call chains — as an interactive graph you can explore, with an AI agent built in to answer questions about what you're looking at, all without sending your code to a server.
GitNexus is a client-side (browser-based, zero-server) knowledge graph engine that indexes a git repository — from GitHub, GitLab, Azure, or a local folder/ZIP — through a multi-phase pipeline: it walks the file tree, parses functions/classes/interfaces via Tree-sitter AST parsing across 13+ languages, resolves imports and function calls, clusters related code into functional communities, traces execution flows, and builds a hybrid BM25 + semantic search index. The graph itself renders with Sigma.js/WebGL for large-scale visualization, and a built-in Graph RAG agent lets you ask questions about the codebase directly. It also supports impact analysis (what breaks if I change this), multi-file refactoring assistance, and pre-commit analysis, plus a CLI and MCP server for integrating into other tools. The browser UI caps out around 5,000 files for memory reasons; larger repos need the CLI mode. It's licensed PolyForm Noncommercial (free for personal/non-commercial use), with a paid enterprise tier adding PR automation and multi-repo graphs.
💬 Our review
The short version: GitNexus is one of the more capable code-exploration tools available for free personal use — worth trying the moment you're dropped into an unfamiliar repo and need to build a mental model fast, though the noncommercial license means companies need the paid tier to use it on the job.
Sourcegraph is the closest heavyweight competitor for large-scale code intelligence and search, but it's built for enterprise deployment and pricing to match; CodeSee offered similar visual codebase maps but has since wound down its product. GitNexus's differentiator is running entirely client-side with zero server setup and no code leaving your machine, combined with a genuinely capable Graph RAG agent rather than just a static diagram. The free tier is real free-tier, not a crippled trial, but it's licensed PolyForm Noncommercial, so a company using it for paid work needs the enterprise tier, and the 5,000-file cap on the browser UI means very large monorepos need the CLI instead. Worth it for individual developers, students, and open-source contributors exploring code for free; companies should budget for the enterprise tier rather than assume the free version covers commercial use. <!-- ai-generated -->
💰 Pricing
📊 Global score
🤖 AI-enriched data
Gratuit pour usage personnel/non-commercial (PolyForm Noncommercial) ; palier entreprise sur devis pour usage commercial
Pros
tourne 100% côté client, aucun code envoyé à un serveur
parsing AST via Tree-sitter sur 13+ langages
agent Graph RAG intégré pour poser des questions sur le code
analyse d'impact et traçage des flux d'exécution
gratuit pour usage non-commercial, CLI + serveur MCP disponibles
Cons
licence PolyForm Noncommercial : usage professionnel/commercial nécessite le palier payant
interface navigateur limitée à environ 5000 fichiers (limite mémoire)
les gros monorepos nécessitent le mode CLI plutôt que l'UI navigateur