Dev.to tutorial Tutorials 1h ago

Build a Local RAG Chatbot in 30 Minutes with .NET 8, Ollama, and React

by Avinash Zala

I built a PDF question-answering chatbot in .NET 8 + React that runs entirely on my laptop — no API keys, no cloud, no monthly bill. The whole thing is 9 source files, ~400 lines, and a free local LLM. Here is the architecture, the code, and the five things I got wrong.

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RAG

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Devto Id: 3962798
Reading Time Minutes: 11

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Build a Local RAG Chatbot in 30 Minutes with .NET 8, Ollama, and React

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