What it does
Knowledge Graph Builder uses AI language models to read unstructured material, such as PDFs, documents, web pages and YouTube videos, and turn it into a knowledge graph stored in a Neo4j database.
A knowledge graph is a map of things and how they relate. You can view the graph and ask questions about your data in a chat, with answers that show their sources.
It supports several AI providers, including OpenAI and Gemini, and needs a Neo4j database, which can be a free cloud one.
Who it's for
Developers and analysts who want to explore connections in a pile of documents.
Can I use it without coding?
With some setup. It needs a Neo4j database and a backend and frontend to be set up, or Docker. New to this? Start here.
Can I run it?
- Cost
- Free, but needs an AI accountThe software is free, but it uses an online AI service (like OpenAI or Anthropic), which usually charges for use.
- Runs on
- Mac, Windows, Linux, Server, Web browser
- Computer
- An ordinary computer is fine
- Privacy
- Sends what you give it to an online service
- API key
- Needed. An API key is a password-like code from an online AI service. What's that?
Try it
Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?
Before you install
- Only download from the official GitHub page. Copies with similar names exist for many popular projects.
- License (Apache-2.0): Permissive: free to use, change and share, including for business.
- Keep your API key private. Never paste it into websites or share it, and set a spending limit with the AI service.
- What you type or upload is sent to an online service. Avoid sharing private or sensitive information.
- More on staying safe