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Free ERD Diagram Maker

Type your database structure details to generate clear entity relationship diagrams for system analysis.

More than 3M individuals from top companies/universities choose MyMap.AI
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How to Create ER Diagrams Using AI

Unlike traditional ERD tools requiring manual drawing, MyMap.AI generates database diagrams instantly from your text description or schema input.

Input Database Description

Input Database Description

Type your database structure or upload your schema file. AI understands and processes your input.

Modify AI-generated ERD

2. Modify AI-generated ERD

Review the generated diagram and refine entity relationships, attributes, and cardinality through natural conversation.

Export and Share

3. Export and Share

Download your ERD as PNG or share online with a unique URL for team collaboration.

Why choose MyMap's ERD Diagram Maker?

AI Summary

AI Assistant

Just describe your database structure and let AI create the ERD automatically.

AI Summary

Smart Import

Import SQL files or schemas directly for instant ERD visualization.

AI Summary

Auto Research

AI searches best database design practices to enhance your ERD structure.

AI Summary

Schema Analysis

Paste database URLs or documentation for instant ERD generation and optimization.

AI Summary

Team Design

Collaborate with teammates on database design in real-time.

AI Summary

Export Options

Download your ERD as SQL scripts, images, or share interactive diagrams.

Use Cases for ERD Diagram Maker

Database Developers: Quick Database Schema Design

Database developers need to design a new application database structure from scratch. They describe their requirements to MyMap.AI, which generates a professional ERD with proper relationships and cardinality. The AI-generated diagram serves as a foundation for implementation, saving hours of manual diagramming work.

Data Analysts: Database Documentation

Data analysts working with legacy systems need to document existing database structures. They input the database schema to MyMap.AI, which automatically generates a comprehensive ERD showing all tables and relationships. This visualization helps team members understand complex data structures and relationships within minutes.

Software Engineers: Database Optimization

Software engineers need to identify inefficiencies in their existing database design. They upload their current schema to MyMap.AI, which creates an ERD highlighting potential optimization points. The visual representation helps them spot redundancies and improve database performance through better structure.

FAQs about Free ERD Diagram Maker

Why choose MyMap.AI's ERD Diagram Maker over other tools?

MyMap.AI offers a unique AI-powered approach that generates ERD diagrams through natural language chat. Unlike traditional tools where you manually draw diagrams, MyMap.AI creates professional ERD diagrams based on your descriptions or database schema input, saving significant time and effort.

What types of relationships can I create in ERD diagrams?

All standard ERD relationship types are supported. This includes one-to-one, one-to-many, and many-to-many relationships. The AI automatically recognizes and correctly implements cardinality notations based on your descriptions.

Can I import my existing database schema?

Yes. You can import your database schema by pasting it into the chat interface. MyMap.AI will automatically analyze the schema and generate a corresponding ERD diagram, complete with entities, attributes, and relationships.

What notation styles are supported?

MyMap.AI supports all common ERD notation styles. This includes Chen notation, Crow's Foot (IE) notation, and Bachman notation. You can specify your preferred notation style in your chat instructions.

How can I export my ERD diagram?

You can export your ERD diagram as a PNG image file. This makes it easy to include your diagrams in documentation, presentations, or share them with team members.

Can I share my ERD diagrams with others?

Yes. You can share your ERD diagrams through a public URL. This makes collaboration with team members and stakeholders simple and efficient.

Is MyMap.AI's ERD Diagram Maker free to use?

Yes, with limitations. You get 5 free AI credits daily to create diagrams. For unlimited diagram creation and advanced features, you can upgrade to a premium plan.

Can I modify the generated ERD diagram?

Yes. While the AI creates the initial diagram, you can refine it through additional chat instructions. Simply describe the changes you want, and the AI will update the diagram accordingly.

What are the basic components I can include in my ERD?

All standard ERD components are supported. This includes entities (rectangles), attributes (ovals), relationships (diamonds), and connecting lines with proper cardinality notation.

Is there a limit to how complex my ERD can be?

No practical limits. MyMap.AI can handle complex database schemas with multiple entities, relationships, and attributes. The AI automatically organizes the layout for optimal readability.