Architecture diagrams that keep up with your code
Generate a diagram from your repo, and let it do the upkeep. Every pull request shows what it changes, and the diagram refreshes itself when you merge — so the picture in your repo is always the one that's true today.
Generating from a repo is free. PR rendering and auto-sync are part of Max.
Every architecture doc starts true and slowly turns into fiction
Someone draws the system in a wiki. Six months and a hundred merges later, nobody trusts it — so nobody updates it, and new hires piece the real architecture together from grep and guesswork. The fix isn't more discipline. It's a diagram that reads the code itself.
1 · Connect
Point it at a repo
Install the GitHub app on a repository and pick it in your workspace. It reads the file tree and your dependencies — no access to anything it doesn't need.
2 · Generate
Get a real architecture diagram
One click and you have a layered diagram of how the system fits together — frontend, services, data, and the external tools you actually depend on.
3 · Forget about it
It maintains itself
From then on it lives in your pull requests and refreshes on merge. You go back to shipping; the diagram keeps itself honest.
The diagram shows up where the work happens
Reviewers see the change, not just the diff
Open a PR and the bot comments a small diagram of exactly what it touches — the shape of the change, before anyone reads a line of code.
The full architecture, right in the thread
The same comment carries the system diagram, rendered natively by GitHub. Context is one scroll away, not buried in a wiki.
It updates itself on merge
Merge to main and the architecture diagram redraws from the new code. The previous version is kept, so you can always look back or revert.
Generated from a repo — renders natively in GitHub
flowchart TD
subgraph FE["Frontend"]
APP["Web app"]
end
subgraph API["Backend / API"]
ROUTES["API routes"]
JOBS["Background jobs"]
end
subgraph DATA["Data"]
DB["Postgres"]
end
subgraph EXT["External Services"]
PAY["Payments"]
MAIL["Email"]
end
APP --> ROUTES
ROUTES --> DB
JOBS --> DB
ROUTES -->|"webhook"| PAY
JOBS -->|"sends"| MAILSee your system drawn from its own code
Generate your first diagram from a repo for free. Turn on PR rendering and auto-sync when your team is ready.
Get started