What is a Google Maps for codebases ?

AI tool that indexes your repo, lets you query in English like searching Google — but for code structure, functions, logic.

How do you build codebase Q&A with LLMs?

Use RAG: parse with tree-sitter, embed/store in Chroma, generate with Ollama/CodeLlama. All local, open-source.

Yep — Ollama runs models on your machine. No cloud, no costs.

🛠️ Developer Tools

Cloned a repo, lost in directories? Build your own AI-powered codebase navigator. Skip shiny SaaS tools — here's the DIY truth.

theAIcatchup Apr 10, 2026 4 min read

Build your own RAG-based codebase navigator with tree-sitter, Chroma, and Ollama — fully offline and free. 𝕏
Ditch proprietary tools; own your code search to avoid privacy pitfalls and subscriptions. 𝕏
This commoditizes 'AI code search,' predicting IDEs will bundle it soon. 𝕏

Published by

Community-driven. Code-first.

#ChromaDB #Google Maps for codebases #Ollama CodeLlama #RAG for codebases #RAG pipeline #Tree-sitter #codebase RAG #codebase navigation

Get the best Open Source stories of the week in your inbox — no noise, no spam.

Originally reported by Dev.to