llm-graph-builder

What it does

Ingests PDFs, documents, YouTube videos and web pages, extracts the entities and relationships with an LLM, and writes the result into Neo4j as a queryable knowledge graph — useful when the interesting information is the connections rather than any single document. Official Neo4j Labs project. Extraction errors are inevitable and a diagram makes them look authoritative, so verify names and links against the source before drawing conclusions. Apache-2.0.

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

Screenshots & visuals

Before you start

• Setup difficultySome setup needed
• Command lineRequired
• API keyRequired
• Sends data onlineYes

Judged automatically from the project's own metadata. Always confirm on the official page.

llm-graph-builder FAQ

Is llm-graph-builder free?

llm-graph-builder itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.

Do I need to install anything or write code to use llm-graph-builder?

It needs the command line. If you are not comfortable typing commands, expect to get stuck during setup.

Does llm-graph-builder work on a phone?

No. It needs a computer.

Can I use llm-graph-builder commercially?

The licence is Apache-2.0, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.

Other docs & pdf q&a tools