Database Schema Template

Entity-relationship diagram with tables, columns, and FK relationships.

Sketch and communicate your database design visually with a board-format ER diagram showing tables, columns, data types, primary keys, and foreign key relationships. Ideal for planning new schemas, onboarding engineers to an existing data model, or running a schema review before a migration. Easier to collaborate on than a SQL file and more expressive than a text description — everyone can read and annotate it in real time.

Free to start — no credit card required.