I made a quick video on how I stopped drawing architecture diagrams by hand, and this post is the written version so you can copy the workflow straight off the page. I used to lose half an hour dragging boxes around in Lucidchart or Figma just to draw one diagram. Now I describe the system in words and let a text-to-diagram tool render it.
What Mermaid actually is
Mermaid is a text-based diagramming language. You type a few lines of plain text and they become a clean diagram: flowcharts, sequence diagrams, cloud architectures. No canvas, no snapping boxes to a grid, no fiddling with arrow anchors. In the video, a tiny snippet naming user, API, and database turns into a full diagram with layers and connections.
It is fast, clean, and version controlled, which a design tool is not. Pair it with AI and it gets quicker still.
Where the AI comes in
This is the mermaid ai diagrams part. You do not have to write the Mermaid syntax yourself. Describe the system to ChatGPT or Claude and ask for Mermaid code. In the demo I use a prompt like “create a Mermaid diagram for a cloud system with a front end, API layer, queues, workers, Redis, and Postgres,” and it writes the whole thing.
The loop is short:
- Describe the system in a sentence or two
- Let the AI generate the Mermaid code
- Paste and render, then tweak the text if something is off
You copy the code and paste it into VS Code, GitHub, Notion, or the Mermaid Live Editor at https://mermaid.live/. A complete system design renders in under ten seconds.
What you can draw this way
The video shows how far generate architecture diagrams with ai actually goes:
- Cloud architecture
- Backend APIs and DevOps pipelines
- Microservices
- AI agent workflows
Who this helps most
Backend and cloud engineers, AI builders, DevOps folks, and students. If you can describe the system, you can document it, no design skills required. That’s the appeal of a text to diagram tool: the diagram follows the words.
Watch the walkthrough
The full demo is above. Subscribe for more practical tools like this, and grab the editor at the mermaid.live link in the description.
I specialize in turning messy cloud and AI systems into clear diagrams and documentation teams can actually use. Book a call at cloudyeti.io/meet.