UML diagram software
Everything you need to create a UML diagram
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Cross-team collaboration and alignment
Collaborate with all the right people in your org to visualize the architecture, design, and implementation of complex software systems.
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Understand and clarify complexity
Track relationships and hierarchies using UML (Unified Modeling Language) to communicate about systems in a standardized, visual way.
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Streamline your tech stack
Integrate Lucidchart with the industry-leading apps that engineering teams use most—including Jira, LeanIX, Notion, and more.
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Powerful AI functionality
Use AI in Lucidchart to effortlessly transform text prompts into polished flowcharts and diagrams that you can iterate on.
See what's possibleGet started faster with templates
Not sure how to diagram a system, process, or algorithm? Explore hundreds of Lucidchart templates for ideas and frameworks that make it easy to organize information visually.
Go to template galleryUML class diagram
UML class diagram
Activity diagram
Activity diagram
UML use case diagram
UML use case diagram
DBMS ER diagram (UML notation)
DBMS ER diagram (UML notation)
ERD with colored entities (UML notation)
ERD with colored entities (UML notation)
UML sequence: Web application authentication
UML sequence: Web application authentication
Logic model
Logic model
Generic Network Diagram Template
Generic Network Diagram Template
Sequence diagram
Sequence diagram
Web sequence diagram
Web sequence diagram
Company high-level systems overview example
Company high-level systems overview example
Algorithm flowchart example
Algorithm flowchart example
See how Lucidchart improves the way you work
See how Lucidchart improves the way you work