Sequence Diagram Tool

You wouldn't build a house without a blueprint, right? The same goes for making software. Use Lucidchart to create UML diagrams that will serve as efficient blueprints.

Make a UML diagram

99% of the Fortune 500 trust Lucidchart to keep teams on the same page.

Get started with UML diagram examples

Start out with Lucidchart's free sequence diagram tool or test the premium features through a free trial. Check out our Community Library to spark ideas.

Make a UML diagram

Flexible and free

Draw sequence diagrams, activity diagrams, use case diagrams, and more. With an extensive shape and connector library, you'll find everything you need to communicate visually.

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Draw together

Lucidchart's collaborative UML tool enables teams to come together online and work in real-time without a single download or system update.

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Intuitive tools

We've designed the editor to be as easy to use as possible. Just drag and drop shapes, images, or text from the side bar to get started, then customize elements to get the look you want.

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Feature Highlights

Make your own professional diagrams. We make flow charts simple, intuitive, and even fun.

Easy to start
It's easy to start diagramming with Lucidchart. Just pick out a template or start from a blank canvas, then click and drag shapes from the toolbar to create a UML sequence diagram. Then check out our shape libraries for making everything from flowcharts to network diagrams.
Visio export/import
If you have Visio files from your past work, you can easily import them into Lucidchart to save you the trouble of redoing them. Meanwhile, you can export your diagrams as Visio files for the benefit of colleagues who have yet to make the switch.
Google integration
Lucidchart integratest with the Google productivity suite, allowing you to manage your diagrams from the familiar Google Drive interface. You can also link Lucidchart with your Jive, JIRA, and Atlassian accounts for smoother workflows.
Publish and share
Share your UML diagram by embedding it in a blog, wiki, or website. You can even export your diagram as an image and include it in a document or presentation. Want to show off your work? Just post it directly to Facebook, Twitter, LinkedIn, or Googl+.