Home › Mermaid to ERD
Mermaid to ERD
Paste a Mermaid erDiagram and turn the text into a fully interactive ERD — drag tables, auto-arrange, and export to image, DBML or PlantUML.
No signup · nothing uploaded · export PNG / SVG / Mermaid / DBML · shareable link
How it works
- Copy your Mermaid
erDiagram. - Paste it into the editor — Mermaid is auto-detected.
- Entities become draggable tables; relationships are drawn with cardinality.
- Arrange, then export PNG/SVG or convert to DBML/PlantUML.
Example
A Mermaid erDiagram like this:
erDiagram
CUSTOMER ||--o{ ORDER : places
CUSTOMER {
int id PK
string name
}
ORDER {
int id PK
int customer_id FK
}
…becomes an interactive ERD with CUSTOMER linked to ORDER. Try it with your own →
Why use it
- Private: everything runs in your browser — nothing is uploaded or stored on a server.
- Interactive — not a static image; drag and rearrange freely.
- Convert Mermaid to DBML, PlantUML, PNG or SVG.
- Free & open source — no account, no sign-up.
MermaidDBMLPlantUMLPNG / SVG
FAQ
How do I turn Mermaid text into a diagram I can edit?
Paste the Mermaid erDiagram here — it renders as draggable tables you can arrange, then export as an image or convert to DBML/PlantUML.
Is my schema uploaded anywhere?
No. Everything runs locally in your browser — your schema is never uploaded to or stored on any server.
Is it free?
Yes. It is completely free and open source, with no account or sign-up required.