Use Schema Designer online for free. No installation, no signup — works directly in your browser.
100% free, no signup required. Works entirely in your browser.
Open Schema DesignerEnter your data or configure options.
The tool processes your input.
Copy or download the result.
The Schema Designer supports visual design for PostgreSQL, MySQL, SQLite, SQL Server, and MongoDB. It generates CREATE TABLE statements and migration code specific to your chosen database system. The visual interface handles data types, constraints, indexes, and foreign key relationships for each supported platform.
The generated schema DDL follows best practices for each database system including proper data type selection, constraint definitions, and index creation. The output is syntactically correct and can be executed directly. However, always review performance implications of indexes and constraints for your specific workload.
All schema design and SQL generation happens locally in your browser. Your database architecture, table designs, and relationship models are never sent to any external server. This ensures your proprietary database structures remain completely private during the design process.
