Database Schema Visualizer

The visualizer parses standard SQL CREATE TABLE statements including column names, data types (VARCHAR, INTEGER, TEXT, TIMESTAMP, BOOLEAN, etc.), PRIMARY KEY, NOT NULL, UNIQUE, DEFAULT, and REFERENCES (foreign key) constraints. It handles both inline column constraints and table-level constraint definitions.

Yes. Paste multiple CREATE TABLE statements separated by semicolons and the visualizer will render all tables simultaneously in a grid layout, making it easy to see your full schema at once.

Yes. When a column uses REFERENCES table(column) or a table-level FOREIGN KEY constraint, the visualizer annotates that column with a FK badge and shows the referenced table and column. This makes it easy to trace relationships across your schema.

Yes. The parser handles standard ANSI SQL syntax compatible with PostgreSQL, MySQL, SQLite, and most other relational databases. Minor syntax differences (like PostgreSQL SERIAL vs MySQL AUTO_INCREMENT) are handled gracefully — the visualizer extracts the column structure regardless of dialect-specific keywords.

No. All parsing and rendering happens entirely in your browser using JavaScript. Your schema definitions never leave your machine and are never stored or logged anywhere.