AI · natural language → Mermaid
AI Mermaid Generator
Describe the diagram you want — a login flow, a database schema, a sprint plan — and get clean Mermaid you can preview, edit, and export. Sign in for 3 free generations; subscribe to Pro for more. Editing and export are always free, no watermark.
Describe any diagram — flowchart, sequence, ER, class, gantt, mindmap… The result drops into the editor below to preview, tweak, and export.
Export controls activate after your diagram renders locally.
Get more generations
Everyone gets 3 free after signing in. For more, subscribe to Pro for a monthly allowance, or buy a one-time credit pack.
- 200 AI generations every month
- AI error auto-fix
- Best value for regular use
FAQ
Questions about the AI Mermaid generator
How does the AI Mermaid generator work?+
Describe the diagram you want in plain English, and the AI returns Mermaid code. The code drops straight into the editor below, where you preview it and export a PNG, SVG, JPG, WebP, or PDF — all rendered locally in your browser.
Is the AI generator free?+
Sign in and you get 3 free AI generations. After that, subscribe to Pro for a larger monthly allowance. Editing and exporting the result is always free with no watermark.
Which diagram types can the AI generate?+
Flowcharts, sequence diagrams, class diagrams, ER diagrams, state diagrams, Gantt charts, mindmaps, timelines, and more — the AI picks the most suitable Mermaid diagram type for your description.
Can I edit the AI-generated diagram?+
Yes. The generated Mermaid code is fully editable in the editor below. Adjust nodes, labels, and styling, then export the final image.