Drawtabase — design database schemas visually

Drawtabase is a free, browser-based designer for relational database schemas. Add tables on a canvas, define columns and draw foreign keys between them, and the SQL CREATE TABLE statements are generated as you work. Paste existing SQL DDL and the diagram appears, auto-arranged — the sync runs both ways, and your tables keep their positions. No account, no backend: schemas are saved in your own browser.

• Tables with typed columns; primary key, foreign key, unique and not-null badges.
• Foreign keys drawn from column to column, with ON DELETE / ON UPDATE actions.
• Live SQL DDL with syntax highlighting, and one-click copy.
• Paste existing CREATE TABLE statements and get an auto-laid-out diagram.
• Export your schema as a .sql file.
• Light and dark themes; works offline.