UML Diagrams Hero Banner

UML diagrams

Implement a better workflow or process for your system by tracking its design and interactions in a unified modeling language or UML diagram. Get the overall picture with tools and an extensive design library from Canva’s free UML diagram maker.
Playa Bowls
Painting with a Twist
Realty Austin
City of Los Angeles

UML diagram maker features

Manage your systems well by visualizing them in Canva’s UML diagram creator for free. Explore facets of your system or process that you can improve or overhaul when you map them out in an organized and eye-catching visualization. Start with a template or from scratch and collaborate with your team to make the most out of our intuitive tools and design library.

More than 20 professional types of graphs to choose from

Professionally designed templates to fast-track your workflow

Data visualization made easy – no complicated software to learn

Publish, share or download your high-resolution graph

Embed your UML diagram in presentations, reports, and more with no fuss

Easy drag-and-drop tools, made with the non-designer in mind

How to make a UML diagram

How to make a UML diagram
Create a UML diagram(opens in a new tab or window)

Create a UML diagram(opens in a new tab or window)

What is a UML diagram?

A unified modeling language or UML diagram(opens in a new tab or window) visually presents a system’s design and structure to help developers find solutions to complex programs and engage non-programmers to decode how these software systems work. Outside of technology, unified modeling language tools demonstrate interactions and relationships of workflows in organizations. All lead to easier decision-making when it comes to improving processes.

The history of UML diagram

The history of UML diagram

The 1990s saw the rise of programming languages that created fascinating software systems. But, stakeholders found them too complicated to analyze. Then came 1996: Grady Booch, James Rumbaugh, and Ivar Jacobson at the Rational Software Corporation were at the helm of creating a visual language to help developers and non-programmers understand the makeup of complex systems.

Soon after, it was adopted by members of the Object Management Group, and for the years that followed, it had been a staple shared visual language which would be standardized by the ISO in 2005.

Despite more agile systems available nowadays, UML diagramming still finds its edge in helping teams to communicate ideas, spot process pain points, and arrive at efficient decisions for systems.

Components of a UML diagram

UML Diagrams Components - Classes


They are categories of objects, often with multiple sections of attributes.
UML Diagrams Components - Objects


Specific classes determined with underlined titles.
UML Diagrams Components - Use Cases

Use cases

External actors that interact with your system or process.
UML Diagrams Components - States


Determine the state in a specific time, whether during the start or end of a process.
UML Diagrams Components - Packages


Components or elements of a system are usually grouped together.
UML Diagrams Components - Nodes


Aspects and pieces of a system.
UML Diagrams Components - Notes and Annotations

Notes & annotations

Provide additional context or explain each element and function more thoroughly.
UML Diagrams Components - Connecting Arrows

Connecting arrows

Establish relationships through dependency, generalization, association, or realization.
UML Diagrams Components - Frames


Surrounds and contains the entire UML diagram and establishes what it’s about with a heading.

All systems go!

UML Diagrams Feature Card 01

Whether you’re developing an app or ensuring that processes flow smoothly in your business, a UML diagram tool may be your best bet. Visualize the design and structure of your program and see potential problems and opportunities to build a fully-realized and intuitive system. Canva’s UML diagram maker lets you work on attractive templates and beginner-friendly tools that’ll supercharge your progress planning or brainstorming sessions for new app features.

Connect ideas with fun symbols

UML Diagrams Feature Card 02

Systems and processes don’t have to be scary and dreary. Make it a creative visual experience with your UML diagram online. Depict how your app or workflow interacts or behaves and see how your components affect and relate to each other using Canva’s rich library of picture-perfect design elements. Explore shapes, arrows, vectors, and images to annotate every stage or step. Then, add a splash of color and art with our nice palettes and text fonts.

Collaborate and communicate seamlessly

UML Diagrams Feature Card 03

Exchange thoughts and ideas efficiently in Canva’s free UML diagram creator. Your team can work simultaneously to generate a UML diagram in time for your next app launch or new product cycle. Collaborate in real-time by sharing a link to your design. Picture your system’s structure and behavior in no time and make impactful comments and decisions all in one place. No need to hop into multiple documents or editors!

Endless space for ideas

UML Diagrams Feature Card 04

Don’t let a limited canvas hinder you from growing your system. Even if you already find yourself working on a UML diagram template, it’s easy to open the floodgates for more ideas. Simply select ‘Expand to a whiteboard’ and brainstorm with your team using the magic of Canva Whiteboards(opens in a new tab or window). You can even turn it into a dynamic collaboration by setting a timer as you identify classes and objects together.

UML diagram templates

Draw a bird’s eye view of your system’s structure and behavior using free UML diagram templates. Customize ready-made UML diagram examples from Canva’s collection below and easily personalize them with colors, texts, and elements based on your program or workflow data.
Quotation mark
"My favorite aspect of Canva definitely has to be the ability to create infographics using Canva. I have used this feature many times throughout the past year to create different kinds of charts and graphs and they always turn out amazing!"


Frequently Asked Questions

Related Graphs and Charts

UML Diagram Bottom Banner

Visualize seamless systems with UML diagrams