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ER Diagram Generator

v1.1.1

Generate ASCII entity-relationship diagrams from table definitions.

Generates ASCII entity-relationship diagrams from table definitions — paste table schemas and get a text-based ER diagram showing tables, columns, and relationship arrows.

How to use
  • →Define your tables with column names and mark PRIMARY KEY and FOREIGN KEY relationships.
  • →The ASCII ER diagram is generated automatically with table boxes and relationship lines.
  • →Copy into your README or documentation where Mermaid or Graphviz aren't available.