GitDiagram
GitDiagram · gitdiagram.com
GitDiagram shows how a public GitHub repository is built. Ask about a repository, for example "Show me the architecture of fastapi/fastapi", and you get its architecture diagram: an interactive map of the main components and how they connect, which you can pan, zoom and open full screen, and where every component opens its source code on GitHub.
How to install GitDiagram in ChatGPT
- Open the official listing for GitDiagram in the ChatGPT workspace you want to use.
- Choose Install plugin if available. Follow any connection steps for the apps listed on the page.
- Open a new conversation on a supported ChatGPT surface. Select GitDiagram from the plugin options or mention it by name.
How to use GitDiagram
Check the marketplace listing or publisher’s documentation for supported actions and examples.
Ranking history
Browse the order shown in the public ChatGPT Plugins directory on each capture date. Popular is a curated collection. OpenAI does not publish install or usage counts here.
Frequently asked questions
Why is Install plugin missing?
Check your account, workspace, plan and region. If the listing says Desktop only, open it in the ChatGPT desktop app.
About
With the diagram, ChatGPT also receives GitDiagram's written explanation of how the codebase is organized, the list of components with the paths they live in, how they connect, and the Mermaid source, so it can answer follow-up questions about the code and point you to the right files. You can also search GitDiagram's library of diagrams by owner or repository name, and get a repository's narrated explainer video and its transcript when one exists. It's for anyone getting to know an unfamiliar codebase: onboarding to a project, evaluating an open-source dependency, preparing a first contribution, or explaining how a project works. Limitations: GitDiagram covers public GitHub repositories only. The plugin reads diagrams GitDiagram has already made; when a repository has none yet, it gives you a link to gitdiagram.com, where the diagram is made in about a minute, and after that the plugin can read it. Diagrams are AI-generated from the repository's files and can miss details, so check anything important against the code. The plugin is read-only, never changes anything on GitHub or elsewhere, and needs no account.