Zovo ER Diagram
Terms of service
Effective 2026-10-02. By using Zovo ER Diagram you agree to these terms.
The service
Zovo ER Diagram is a tool provided by Zovo, a brand operated by AUTOM8 LLC for use inside ChatGPT, Claude, and other MCP clients. Zovo ER Diagram turns SQL CREATE TABLE statements into an entity relationship diagram. Paste the DDL from PostgreSQL, MySQL or SQLite: each table becomes a box with all its columns and types, with PK, FK and UQ marks, and each foreign key becomes a line with crow's foot marks. The marks come only from the DDL: NOT NULL, primary keys and UNIQUE decide them, and the rules are written on the result. Tables that other tables reference are placed to the left. Lines run in the space between the tables, and a geometry check on the final drawing counts boxes that overlap and lines that cross a table, and reports both counts. The PDF is Letter, A4 or Tabloid. Large schemas go on to more pages with text of at least 7 pt, cut only between tables, with a page list of tables and relationships. You also get an SVG of the whole diagram, a CSV with one row per column and a JSON summary. A second tool checks the schema without drawing: foreign keys to missing tables or columns, type differences, tables without a primary key and duplicate names.
Acceptable use
Do not use the service for unlawful purposes, to infringe the rights of others, or to disrupt or overload the service.
No professional advice
Results are generated by deterministic calculations from the inputs you provide. They are informational and are not legal, tax, financial, or other professional advice. Check important results before relying on them.
Your content
You keep ownership of the content you enter. You grant us only the rights needed to process it and return the result.
Availability and warranty
The service is provided "as is" without warranties of any kind. We may change, suspend, or discontinue it at any time.
Liability
To the maximum extent permitted by law, Zovo, a brand operated by AUTOM8 LLC is not liable for indirect or consequential damages arising from use of the service.