Component diagram maker

Q: Can I build a UML diagram using markup?

Yes. First, you will need to enable the UML sequence diagram shape library. Then, Lucidchart provides a UML sequence markup feature that auto-generates a sequence diagram based on the text you provide.

Q: How can I change the formatting of a UML diagram?

You can add styling and formatting to your UML diagram using the Properties bar at the top of the Lucidchart editor.

Q: Can I show the difference between current and future states within the UML diagram?

Yes, use the layers feature to visualize current, ideal, or future states of any process or system side by side. Start with your current system and then create a layer depicting future states. Use hotspots to toggle between layers.

Q: What are the options for sharing my UML diagram in Lucidchart?

Publish and share diagrams with Lucidchart users and non-users via email, shared link, PDF, or image file. You can also share your diagram on social media or embed it onto any webpage.

No matter the scale of your software architecture, Lucidchart’s UML component diagram creator helps you organize systems. Use professional templates to define dependencies and document your high-level structure effortlessly.

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Get started with our AI diagram generator

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Professional, data-backed component diagrams

Create and share component diagrams in minutes to visualize your high-level software architecture.

Architect high-level systems

Organize complex software into manageable pieces. Use component diagrams to visualize dependencies and structural relationships, ensuring your team is aligned on the implementation of every module.

Use professional shape libraries

Leverage industry-standard symbols to define your system’s physical architecture. Quickly add components, interfaces, and ports to document how your software functions as a whole.

Leverage Lucid AI

Use Lucid AI to create UML diagrams faster than ever. Simply enter text prompts to generate professional visuals and then iterate until you have the exact documentation you need.

Collaborate in real time

Invite people to view, edit, or give real-time feedback on your UML diagram using comments and @mentions. Review individual contributions by enabling collaborator colors, and use revision history to see changes or revert to a previous version.

Boost productivity with 100+ integrations

Connect Lucidchart to apps from leading providers like Google, Microsoft, and Slack. Explore the Lucid integrations marketplace for apps to streamline communication, strategic planning, task management, and more.

Lucidchart feature highlights

Real-time collaboration

Streamline work by enabling multiple collaborators to create and edit the same diagram at once.

Data linking

Conditional formatting

Layers

Revision history

Shape libraries

AI prompt flow

Lucidchart feature highlights

Streamline work by enabling multiple collaborators to create and edit the same diagram at once.

Component diagram templates and examples

Choose a customizable template to create a UML component diagram online.

Activity diagram with swimlanes

Go to Activity diagram with swimlanes template

UML class diagram

Go to UML class diagram template

Web sequence diagram

Go to Web sequence diagram template

Getting started in Lucidchart

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Follow along with this video tutorial and learn how to make any type of diagram in Lucidchart.

Make a diagram

Why teams choose Lucidchart

As an intelligent diagramming application, Lucidchart provides simple yet powerful capabilities for visualizing information.

Collaboration. Bring teams together side by side on a shared canvas from anywhere in the world.

Alignment. Build transparency and shared understanding of how a team or company works.

Large-scale change. Increase visibility, standardization, and knowledge sharing across your entire org.

End-to-end workflows. Upgrade to the Lucid Suite for a complete, connected visual collaboration solution.

What is a UML component diagram?

A component diagram in UML gives a bird’s-eye view of your software system. Understanding the exact service behavior that each piece of your software provides will make you a better developer. Component diagrams can describe software systems that are implemented in any programming language or style.

How to create a component diagram

Identify components

Add the components

Add interfaces and ports

Label and clean up the diagram

Complete and share your diagram

Additional Lucidchart resources

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Frequently asked questions about UML diagrams

Can I build a UML diagram using markup?

How can I change the formatting of a UML diagram?

Can I show the difference between current and future states within the UML diagram?

What are the options for sharing my UML diagram in Lucidchart?

Everything you need to make a diagram

In addition to our online component diagram tool, Lucidchart offers support and training resources to help you branch out to any type of diagram.

Lucid Training