Can I edit the diagram?

Yes. The Mermaid source is shown next to the render, so you can adjust it and paste it anywhere Mermaid is supported.

Is a database or queue detected automatically?

Common ones are: Postgres, MySQL, SQLite, Redis, Kafka, RabbitMQ, SQS, and any database URL found in configuration.

Does the diagram stay current?

Inside a ShipDocs project the diagram is regenerated when the code changes, so it does not drift like a hand-drawn one.

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Architecture Diagram

Generate an architecture diagram from any public repo

Paste a public repo URL. We analyze up to 35 key source files and render the same layered architecture diagram as paid projects — modules, backend hub, and data stores.

Need the full repo mapped — private repos, doc modules, and chat? Start 3-day trial on ShipDocs.

The Architecture Diagrammer turns a repository into a Mermaid system diagram: services, entry points, data stores, and how they call each other.

users onboarded: 640+
doc modules generated: 18k+
files indexed: 2.1M+
avg to first docs: ~2 min

What does Architecture Diagram check?

Entry points and the framework each one boots
Service, worker, and job boundaries
Database, cache, queue, and external API usage
Import edges that reveal the dependency direction between modules

How does Architecture Diagram work?

1.Paste a public repository URL or open the Architecture tab of a ShipDocs project.
2.ShipDocs extracts the structure from files and configuration.
3.The diagram renders as Mermaid source you can edit, copy, or export as PNG.

What do you get from Architecture Diagram?

• An editable Mermaid diagram of the system
• A copyable source block for your README or design docs
• A PNG export for slides and onboarding material

“Every AI tool invented APIs we don't have. ShipDocs cited src/routes/billing.ts on the first question. That alone paid for Advanced.”

Priya K., Engineer · B2B SaaS · First correct citation in under 60 seconds

Frequently asked questions

Can I edit the diagram?: Yes. The Mermaid source is shown next to the render, so you can adjust it and paste it anywhere Mermaid is supported.
Is a database or queue detected automatically?: Common ones are: Postgres, MySQL, SQLite, Redis, Kafka, RabbitMQ, SQS, and any database URL found in configuration.
Does the diagram stay current?: Inside a ShipDocs project the diagram is regenerated when the code changes, so it does not drift like a hand-drawn one.

More free tools and examples

Repo Wrapped — Shareable stats card for any public repo: languages, hotspots, doc coverage.
Onboarding Time Estimator — How long a new engineer needs to ship their first change in your repo.
Docs Gap Map — Which files and modules have no documentation at all.
Dependency Time Bomb — Outdated, unmaintained and risky dependencies, ranked by upgrade pain.
Dead Code Finder — Unused files, exports and dependencies that can safely be deleted.
Production Readiness Audit — Tests, CI, error handling, secrets and deployment hygiene in one report.
Agent-Readiness Score — Score any docs URL 0–100 for LLM and coding-agent consumption.
Repo Complexity Score — Cyclomatic complexity, nesting depth and the files that slow teams down.

All free developer tools · Live examples of generated documentation · How ShipDocs works

By The ShipDocs team · Reviewed October 16, 2026