Database Schema Visualizer

Transform your SQL DDL statements into beautiful, interactive entity relationship diagrams. Simply paste your CREATE TABLE statements and watch as the tool automatically detects relationships, foreign keys, and table structures. Perfect for database documentation, team collaboration, and understanding complex schemas. Export your diagrams as SVG, PNG, or Markdown documentation.
Quick Examples

Database Schema Visualizer

Transform your SQL DDL statements into beautiful, interactive entity relationship diagrams. Simply paste your CREATE TABLE statements and watch as the tool automatically detects relationships, foreign keys, and table structures. Perfect for database documentation, team collaboration, and understanding complex schemas. Export your diagrams as SVG, PNG, or Markdown documentation.

SQL DDL Input
Supports MySQL, PostgreSQL, SQLite, SQL Server syntax
Display Options
Schema Analysis
0
Tables
0
Relationships
Entity Relationship Diagram

Your ERD diagram will appear here

Export Options
Table Details
Click on a table in the diagram to view details

Help & Related Tools

Everything you need to know

FAQ Frequently Asked Questions

What SQL dialects does the visualizer support?
The tool supports MySQL, PostgreSQL, SQLite, and SQL Server CREATE TABLE syntax. It automatically detects foreign key relationships, primary keys, indexes, and data types to generate comprehensive ERD diagrams with full relationship mapping.
How do I create an ERD from my database schema?
Simply paste your CREATE TABLE statements into the input area. The tool automatically parses the SQL, detects relationships, and generates an interactive diagram. You can then drag tables, adjust layouts, and export in multiple formats.
Can I import schemas from existing databases?
Yes! You can paste SQL dumps, DDL exports, or schema definitions from any database tool. The visualizer works entirely in your browser, ensuring your schema data remains private and secure.
What are the limitations for complex schemas?
The tool handles schemas with up to 100 tables efficiently. For optimal performance, we recommend schemas under 50 tables. Very complex relationships may require manual layout adjustments for best visualization.
Can I edit and save my diagram layouts?
Yes! Arrange tables by dragging them to your preferred positions. Export your layout as a JSON file to reload later, or share the configuration with your team for consistent documentation.

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