Developer Tools
ER Diagram Generator
Turn a schema outline into a Mermaid ER diagram.
ER Diagram Generator
Tool result
Fill the form and run the tool.
ER diagram generator for app and database planning
This ER diagram generator is useful when you need a quick database picture without opening a separate modeling suite. Start from a schema outline, then preview entities and foreign keys as a Mermaid ER diagram for internal planning or product specs.
ER diagram generator FAQ
Can I describe foreign keys in the schema outline?
Yes. Add field lines that reference another entity and the tool will use that structure to build a clearer Mermaid ER diagram.
Is this ER diagram tool suitable for app database planning?
Yes. It works well for SaaS products, internal apps, MVP planning, and product specs where you need a simple entity relationship view.
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