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AI ER Diagram Generator - Entity Relationship Diagrams

Create ER diagrams with AI. Design database schemas and relationships.

Two Output Modes

Choose between Mermaid Code (visual diagrams) or Text/ASCII mode (text-based)

Mermaid vs Text/ASCII mode comparison

Switch between modes using the dropdown in the input bar

Edit & Re-render

Manually edit the Mermaid code and re-render your diagram

Code tab with Re-render Diagram button

Switch to the Code tab to make manual adjustments

Refine, Then Go Pro

Adjust and refine your diagram as many times as you need, then switch to Pro Mode

Sidebar showing Pro/Draft mode toggle

Use the toggle in the sidebar to switch to Pro Mode

Seamless Transition

Your draft diagram automatically prefills into Pro Mode

Pro mode with prefilled draft content

Your work in Draft Mode carries over to Pro Mode for beautiful infographics

AI can make mistakes, so double-check the generated diagrams

AI ER Diagram Generator | Free AI Diagram Generator