Sequence Diagram Online

Create Sequence Diagrams Online

Create sequence diagrams in seconds with GenMyModel, a free uml online tool to draw UML diagrams.

  • Sequence Diagram Examples to get started quickly
  • No install, web-based application
  • Export (UML,PDF,SVG,JPG)
Start drawing now

Draw UML Sequence Diagrams Online

Easy and fast

GenMyModel is an UML editor with powerful features for creating UML sequence diagrams, in the web browser. GenMyModel helps you create sequence diagrams with amazing ease, there's no install, no setup and no learning curve to get started.It’s just a matter of drag, drop and connect.

UML compliant

At anytime, GenMyModel assists you draw a valid UML sequence diagram by highlighting the UML elements that match an UML-compliant architecture. It saves time when creating UML elements such as lifelines, behaviors, calls, replies, etc.

  • design uml sequence diagram online
    Design easily
  • uml sequence diagram image
    Share and export
  • uml sequence diagram model
    Edit all UML properties

UML Sequence Diagram


Within GenMyModel, you can create your sequence diagram online, share and export images. Everything is handled in your web-browser with an intuitive user interface. The sequence diagrams conform the UML2 standard. You get both a visual representation, called the diagram, and the internal structure of your model in a tree-based representation. It works on Windows, Mac, Linux and the supported browsers are IE, Chrome, Firefox, Safari and Opera.

Unified Modeling Language

A sequence diagram in the Unified Modeling Language (UML) is an interaction diagram that shows how processes operate with one another and in what order. UML sequence diagrams model the flow of logic within your system in a visual manner, enabling you both to document and validate your logic, and are commonly used for both analysis and design purposes. Sequence diagrams are the most popular UML artifact for dynamic modeling, which focuses on identifying the behavior within your system.

The sequence diagram is a construct of a message sequence chart. A sequence diagram shows object interactions arranged in time sequence. It depicts the objects and classes involved in the scenario and the sequence of messages exchanged between the objects needed to carry out the functionality of the scenario. Sequence diagrams are typically associated with use case realizations.

A sequence diagram shows, as parallel vertical lines (lifelines), different processes or objects that live simultaneously, and, as horizontal arrows, the messages exchanged between them, in the order in which they occur. This allows the specification of simple runtime scenarios in a graphical manner.

Sequence diagrams are typically used to model usage scenarios, the logic of methods and the logic of services.

Source: agilemodeling

Sequence Diagram Examples

GenMyModel comes with many free examples, clonable in just a click. You can access these designed templates from the dashboard area. The examples contain sequence diagrams but also class diagrams, use case diagrams and activity diagrams.

uml sequence diagram example

The Restaurant example designed in GenMyModel

Learn more about how to draw more diagrams in GenMyModel: Flowchart softwareBPMN online