How to generate an architecture diagram from a GitHub repo with AI
Paste a GitHub repo URL into ArchDraw and it analyzes the codebase to produce an architecture diagram — components, relationships, workflows, and dependency intelligence — in minutes instead of days. The result is imported straight onto your canvas as an editable, auto-laid-out graph you can refine and share.
Manually mapping a codebase into boxes and arrows is the slowest part of an architecture review. ArchDraw runs a multi-stage pipeline that reads the repository, classifies the components, extracts how they depend on each other, and verifies the result before it ever reaches your canvas.
What happens under the hood
Ingest
ArchDraw fetches your repository (via the GitHub tarball), unpacks it, and caches the result so re-diagramming is fast.
Classify
Agent models identify the stack and classify files into architectural components — services, databases, queues, clients, and external dependencies.
Extract relationships
Import graphs, resolvers, and framework conventions are analyzed to find how components actually depend on each other.
Derive workflows
The graph is condensed into request paths and critical dependencies that matter for design reviews.
Verify
Generated components and edges are checked for accuracy and confidence before the diagram is materialized on your canvas.
What you get back
- • Auto-laid-out component graph on your canvas
- • Detected stack and architecture pattern
- • Request workflows and critical dependencies
- • Confidence rating and review notes
How to use it
- 1Open the editor and launch the Repo → Diagram generator.
- 2Paste the GitHub repository URL and start generation.
- 3Review the summary — stack, architecture pattern, workflows, confidence.
- 4Import the graph, then refine it like any ArchDraw canvas: rewire, auto-layout, template, export.
FAQ
Does generating a repo diagram cost a generation?
Yes — repo diagrams run through the same AI pipeline as prompt generation, so they count against your quota.
Which repositories are supported?
Any public GitHub repository. ArchDraw fetches the repo over the network, so the codebase needs to be reachable.
What do I get besides the diagram?
The diagram is imported into your canvas with components and edges, plus a summary with the detected stack, architecture pattern, workflows, critical dependencies, and a confidence rating.
Can I edit the result?
Yes. The generated graph is a normal ArchDraw canvas — you can rewire nodes, run auto-layout, apply templates, and export it like any other diagram.