Free AI ER Diagram Generator
Transform database descriptions into professional entity-relationship diagrams instantly. Describe your entities, attributes, and relationships - AI creates the ERD.
What is the AI ER Diagram Generator?
The Flowova AI ER Diagram Generator is a free online tool that converts database descriptions into professional entity-relationship diagrams automatically. Describe your entities (tables), their attributes (columns), and relationships (foreign keys, one-to-many, many-to-many) in plain language, and watch the AI create a properly formatted ERD with correct notation. Perfect for database design, documentation, and learning SQL concepts.
How to Use This Free Tool
Describe Your Database
Explain your entities, their attributes, and how they relate. Use natural language - no need for SQL syntax.
- Entity descriptions
- Attribute lists
- Relationship definitions
AI Creates Your ERD
Our AI identifies entities, attributes, primary keys, foreign keys, and relationship cardinalities, then generates a proper ER diagram.
- Entity detection
- Relationship mapping
- Cardinality notation
Customize and Export
Edit entities, add attributes, adjust relationships, and export free to PNG, SVG, or Mermaid code.
- Visual ERD editor
- Professional themes
- Free export options
Powerful Features
Natural Language to ERD
Describe your database structure in plain English. No need to know ERD notation or SQL - the AI understands database concepts.
Relationship Detection
Automatically identifies one-to-one, one-to-many, and many-to-many relationships from your description.
Cardinality Notation
Generates proper cardinality symbols (1, N, M) showing the nature of relationships between entities.
Primary & Foreign Keys
Identifies and marks primary keys (PK) and foreign keys (FK) in your entity diagrams.
Attribute Types
Supports various attribute types and can show data types when specified in your description.
Database Documentation
Export as PNG for wikis, SVG for design docs, or Mermaid code for developer documentation.
Why Choose This Free Tool?
Design Databases Faster
Skip the tedious manual ERD drawing. Describe your schema and get a professional diagram in seconds.
Communicate with Stakeholders
Share visual database designs with non-technical stakeholders who cannot read SQL schemas.
Document Existing Databases
Create visual documentation of your existing database structure for onboarding and reference.
Learn Database Design
Students and beginners can visualize database concepts and understand relationships better with ERDs.
Plan Before Building
Design your database visually before writing migrations. Iterate on the diagram, then implement.
Interview Preparation
Practice database design by quickly creating ERDs for common scenarios like e-commerce, social media, etc.
Who Can Benefit?
Database Developers
Design and document database schemas
Backend Engineers
Plan data models before implementation
Solutions Architects
Communicate data architecture to teams
Students
Learn database concepts and practice ERD creation
Technical Writers
Create database documentation with visual diagrams
Business Analysts
Understand and communicate data structures
Frequently Asked Questions
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