Object diagram software

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.

Capture a precise snapshot of your system’s state at any point in time using our UML object diagram creator online. Visualize specific instances, attribute values, and the real-world relationships between your classes.

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Get started with our AI diagram generator

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Professional UML object diagram maker

Map unique instances and data structures with dynamic features designed to clarify complex dependencies and boost team alignment.

See your data in action

Object diagrams let you view your system at any moment, so you can see exactly how instances and data structures are working together.

Access specialized shape object libraries

Build technically accurate snapshots with dedicated shapes for objects, link notations, and attribute values. Lucidchart’s intuitive shape library makes it easy to map out exactly how instances interact.

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.

Object diagram templates and examples

Select one of our customizable templates to create a UML object 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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Getting Started in Lucidchart

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 an object diagram in UML?

A UML object diagram represents a class diagram at a certain moment in time. When represented visually, you'll see many similarities to the class diagram. An object diagram focuses on object’s attributes, and how those objects relate to each other. You can easily make an object diagram relating to any topic, from family trees to corporate departments, or for any other system with interrelated parts.

How to create an object diagram

Define the system state

Map out your objects

Fill in states and attributes

Connect your instances

Polish and organize

Additional Lucidchart resources

Lucid Training Labs

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Help center

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Lucidchart tutorials

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Lucid blog

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Lucidchart pricing

Create a free account and compare options for paid Individual, Team, or Enterprise plans.

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Frequently asked questions about our UML diagramming tool

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 object diagram tool, Lucidchart offers support and training resources to help you branch out to any type of diagram.

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