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MERMAID DIAGRAM GUIDE

Mermaid architecture diagram online editor

Show cloud services, infrastructure groups, and their connections. Create the diagram in Mermaid Studio, preview it instantly, and export it when it is ready to share.

Open the Architecture editor See an example

WHAT IT IS FOR

Make the important relationships clear

Show cloud services, infrastructure groups, and connections so teams can reason about boundaries, dependencies, and traffic.

  • Document cloud architecture
  • Explain infrastructure dependencies
  • Review deployment boundaries
Why use Mermaid Studio?
  • Write the source as versionable Mermaid code.
  • Preview changes immediately in the browser.
  • Export the finished diagram as SVG or PNG.
  • Start from a related template when you need a head start.

MERMAID EXAMPLE

Start with a working example

Copy the structure, replace the labels with your own domain, and continue in the full editor.

architecture-beta
  service internet(internet)[Internet]
  group cloud(cloud)[Cloud]
  service api(server)[API] in cloud
  service db(database)[Database] in cloud
  internet:R -- L:api
  api:R -- L:db

HOW TO START

Create your diagram in four steps

  1. 1Define the system boundary and major groups.
  2. 2Add the services or resources that matter.
  3. 3Connect traffic, dependencies, or ownership relationships.
  4. 4Validate the diagram with the people who operate the system.

WRITING TIPS

Keep the diagram useful

Group services by boundary or responsibility.

Use connection direction to show traffic or dependency.

FAQ

Frequently asked questions

What is an architecture diagram?+

An architecture diagram explains the major parts of a system and how they connect across software, infrastructure, or organizational boundaries.

How is it different from a C4 diagram?+

An architecture diagram can focus on infrastructure and deployment structure, while C4 emphasizes software structure at defined levels of detail.

TEMPLATES

Start from a related template

Cloud service architecture

Show internet, API, and database deployment relationships.

Open template

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Show how an object or workflow changes state in response to events.

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Mermaid mindmap

Organize ideas and subtopics hierarchically around a central theme.

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Ready to make a Architecture?

Open the editor with a working example and adapt it to your project.

Start in Mermaid Studio