Domain Model Diagram Maker
Turn your data model into a clear UML class diagram — no coding required.
Describe your domain model in plain language and get a ready-made class diagram with classes, attributes, methods, and relationships. Perfect for architects, developers, and analysts.
Everything a Domain Model Diagram Maker Needs
Purpose-built for UML class diagrams — from simple entities to complex domain architectures.
AI Class Generation
Describe your system in plain text and get a complete class diagram with attributes, methods, and relationships generated automatically.
Full UML Relationship Support
Model inheritance, composition, aggregation, association, dependency, realization, and link relationships with accurate arrow notation.
Class Stereotypes
Mark classes as Interface, Abstract, Enumeration, or Service to communicate design intent clearly across your team.
Member Visibility Control
Set public, private, protected, or package visibility on each attribute and method with proper UML notation rendered automatically.
Cardinality Labels
Add cardinality annotations (1, 0..1, 1..*, *) to relationships so multiplicity constraints are clearly visible in your domain model.
Zoom and Pan Navigation
Navigate large, complex class diagrams with smooth zoom and pan controls — keep every class readable at any scale.
Model Any Domain in Minutes
Describe Your System
Type a plain-language description of your domain and the AI builds a complete class diagram automatically.
Define Classes Manually
Add classes, set stereotypes (interface, abstract, enum), and configure each member with type and visibility.
Map Relationships
Connect classes with inheritance, composition, aggregation, association, and dependency arrows with cardinality labels.
Upload Existing Schemas
Paste your data model or schema and let the AI translate it into a structured class diagram instantly.
Share Your Domain Model Anywhere
Export as PNG or SVG
Download crisp, high-resolution diagrams ready for technical docs, slide decks, or design specs.
Share via Link
Get a shareable link and send your domain model diagram to teammates or stakeholders instantly.
Embed in Your Site
Add your class diagram directly to wikis, Notion, Confluence, or any website using a simple embed code.
Use in Presentations
Drop exported diagrams into PowerPoint, Google Slides, or Figma for polished architecture reviews.
About MakeCharts Domain Model Diagram Maker
MakeCharts is a free, AI-powered charting tool built for clarity and speed. The domain model diagram maker lets you create UML class diagrams without installing software or learning complex notation. Describe your system and get a diagram in seconds.
- ✓Supports all standard UML class diagram elements and relationship types
- ✓AI generation from plain-language system descriptions
- ✓Export-ready PNG and SVG output for docs, slides, and wikis
- ✓Used by developers, analysts, and educators worldwide
- ✓Part of a 30+ chart type library built for every data story
Built for Real Engineering Work
From Concept to Class Diagram in 3 Steps
No UML tools to install. No diagram software to learn. Just describe and build.
Describe Your Domain
Type a plain-language description of your system — the entities, their attributes, and how they relate to each other.
'Online library with Book, Member, Loan, Author, and Category classes — a member can borrow many books'
Review and Refine
The AI generates a full domain model diagram. Add or edit classes, update member types and visibility, and adjust relationships as needed.
Add a 'Library' class, set 'ISBN' as a private string attribute, mark 'borrow()' as a public method
Export and Share
Download your class diagram as PNG or SVG, share a link, or embed it directly into your documentation.
Export to SVG for your architecture wiki or paste the embed code into Confluence
Who Uses a Domain Model Diagram Maker
Class diagrams power software design across every industry and team size.
Design System Architecture
Model the core entities of a new system before writing a single line of code. Align the team on structure and responsibilities early.
Map Business Domain Concepts
Translate business rules into a structured domain model that developers and stakeholders can both understand and validate.
Teach Object-Oriented Design
Create clear, annotated class diagrams to illustrate OOP principles, design patterns, and domain-driven design concepts.
Plan Database Schemas Visually
Use class diagrams to plan entities, attributes, and associations before translating them into database tables and foreign keys.
Templates
Start with professionally designed templates
Inheritance Hierarchy Class Diagram Template
Quickly map OOP inheritance chains - from abstract base classes to concrete implementations - using this ready-to-edit UML class diagram template.
UML Class Diagram Template
Start with a ready-to-edit e-commerce class diagram and visualize your object-oriented system design in minutes.
Object Oriented Design Template: UML Class Diagram
Model class hierarchies, interfaces, and relationships in a clean, professional class diagram built for OOP design.
Data Classification Framework Class Diagram Template
A ready-to-use UML class diagram template that models data assets, classification levels, ownership, access policies, retention rules, and audit logging in one structured view.
Classroom Management System Class Diagram Template
A structured UML class diagram that maps every key entity in a classroom management system — from teachers and students to assignments, grades, and attendance.
View All Templates
Browse the full library to find more templates tailored to your chart.
Why Use MakeCharts Instead of Traditional UML Tools
Purpose-built AI generation vs. manual diagram editors.
Traditional UML Tools
- ✗Steep learning curve with complex interfaces
- ✗Manual drag-and-drop for every element
- ✗Separate desktop software to install
- ✗Tedious to update when requirements change
- ✗Hard to share without exporting files
- ✗No AI assistance for structure or naming
MakeCharts Domain Model Maker
- ✓AI generates your class diagram from a description
- ✓Add and edit classes and relationships in a clean panel
- ✓Runs entirely in your browser — nothing to install
- ✓Refine and update diagrams in seconds
- ✓Share instantly via link or embed code
- ✓Supports full UML notation with 8 relationship types
Frequently Asked Questions
What is a domain model diagram?
A domain model diagram (also called a UML class diagram) shows the key entities in a system, their attributes, methods, and how they relate to each other. It is used in software design, business analysis, and database planning to align teams on the structure of a system before building it.
How does the AI domain model diagram maker work?
You describe your domain in plain English — mentioning the main entities and how they connect. The AI interprets your description and generates a complete class diagram with classes, typed attributes, methods with visibility, and UML relationship arrows. You can then edit everything manually to match your exact needs.
Can I create a UML class diagram without knowing UML syntax?
Yes. MakeCharts handles all UML notation for you. You use plain-language forms to add classes, members, and relationships, and the diagram renders the correct arrows, visibility symbols, and cardinality labels automatically. No UML knowledge required to get started.
What relationship types does the class diagram support?
The tool supports all standard UML relationships: inheritance, composition, aggregation, association, dependency, realization, link, and dashed link. Each renders with the correct arrowhead style, and you can add cardinality labels and optional relationship names to any connection.
Can I add stereotypes like Interface or Abstract to classes?
Yes. Each class in your domain model diagram can be tagged with a stereotype: Interface, Abstract, Enumeration, Service, or none. Stereotypes appear in guillemet notation ('«interface»') on the diagram, following standard UML conventions.
Built for Every Team and Skill Level
- ✓No UML experience needed — the AI handles notation and structure
- ✓Works in 12+ languages so global teams can collaborate
- ✓Runs in any modern browser on desktop or tablet
- ✓Simple enough for students, detailed enough for senior architects
- ✓Free tier lets anyone start without a credit card or account
Your Domain Models Stay Yours
- •Your diagrams and data are not sold to third parties
- •You control what you share and with whom
- •Download or delete your work at any time
- •No diagram data is used to train AI models without consent
- •Shareable links can be kept private or shared selectively
Build Your Domain Model Diagram Now
Free, instant, and no installation required.