UML Online Examples

Browse interesting UML diagram examples made by the GenMyModel community. All the public following examples can be forked and adapted to your needs.

You can select any of those examples to bootstrap your UML online project quickly with no installation or delay. Once forked, add collaborators to work in real time on your diagrams directly right in the browser.

Machine model

This model of a computer demonstrates the use of the following design patterns: composite pattern, adapter pattern, proxy pattern, facade pattern and decorator pattern.


Classes, operations, attributes : learn the basics of the UML class diagram. Useful example to get started quickly with UML class diagrams


The Bridge pattern allows to vary both the implementation and the abstraction by placing both in separate class hierarchies. Abstraction defines the abstract interface and maintains the Implementor reference. RefinedAbstraction extends the interface defined by Abstraction. Implementor defines the interface for implementation classes. ConcreteImplementor implements the Implementor interface According to "Design Patterns" by Helm and Johnson, the use of the bridge pattern means to "decouple an abstraction from its implementation so that the two can vary independently".


A customer can have many accounts. There are 3 types of account: savings account, checking account and certificates of deposit account. The purpose of savings account is to allow us to save money. Account holder can make some limited number of deposits and withdrawals per month, while account provides no checks.


A simple Singleton design pattern represented as a Class in a UML Class diagram.


According to Freeman in "Head first design patterns", the Adapter pattern is a design pattern that translates one interface for a class into a compatible interface. An adaptor allows classes to work together that normally could not because of incompatible interfaces. The adapter provides its interface to clients while using the original interface. In this class model illustrating the pattern, the Client cannot directly access to Adaptee.methodB(). It uses the adaptor by calling methodA() and the adaptor translates it by calling methodB().


This project shows a basic skeleton for a social oriented application


This UML example model use both a Class Diagram and a Sequence Diagram to describe the hierarchy and the ordering process in a restaurant.

UML Public Examples by the GenMyModel Community