Diagram from code with the online PlantUML editor by Miro Labs

Use the PlantUML editor app to easily create and import diagrams with a plain text language. Automate the process of generating complex diagrams without worrying about design and layout.

Over 70M+ users love Miro

Create diagrams fast with a PlantUML online editor

Save time and effort when creating diagrams, and visualize complex ideas easily. From software developers to business analysts, the PlantUML online editor helps teams to create a common understanding around systems and processes.

Why Miro PlantUML app is the best for diagramming

Automated diagramming

Create your diagrams using PlantUML syntax, and see your work come to life automatically. Miro’s PlantUML app helps to create code-based diagrams directly on your board, no design skills needed.

Collaboration made easy

Invite everyone to your board and get instant feedback on your PlantUML online diagram by tagging people in the comments. Increase your productivity, iterate faster and move projects forward.

Share your work

Create one single source of truth, and align teams effortlessly. Communicate systems, processes, and ideas in real time or async, no matter your team setup. With Miro, it’s easy to stay in sync.

Explore integrations

Miro PlantUML app integrates with your tech stack, making it easier to import and export diagrams. Copy code from other sources like GitHub or Notion, and optimize how you diagram systems.

Related templates

Model and design software at ease.

Understand the order in which the events within a sequence interact with each other.

Plan object-oriented systems in a joint workspace that fosters collaboration and innovation using a UML class diagram.

Plan, draw, and share an object-oriented system’s elements and components using our Component Diagram Template.

Visualize the workflow of a process and how objects perform actions.

Get a complete snapshot of how every object in your program interacts with all the others.

How to create a diagram with PlantUML in Miro


Select the PlantUML app

After installing PlantUML editor from the Marketplace, go to the toolbar and find the PlantUML app.


Enter your diagram code

The app has a default sample, change the text and add your data.


Add it to the board

Click on the Add to board button.


Share it

Invite others to your board and iterate your diagram quicker than ever!

Integrated with your favorite tools

Ideas, inspiration, and intel in full view. Visualize marketing campaigns and client and prospect info to take action, and track tasks and status updates for the team.

Connect Miro to 1OO+ of your favorite collaboration tools

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Customer stories

“Miro helps solve one of the major gaps in product design: how to manage tasks across product designers whose projects are in different tools.”

Jane Ashley

Head of Design at DocuSign

PlantUML online FAQs

Yes, you can create a class diagram with a PlantUML editor. PlantUML is a text-based diagramming tool that allows you to create diagrams using a plain text language. To create a class diagram, you can use the PlantUML class diagram syntax, which includes classes, interfaces, attributes, and methods. Once you have created your diagram, you can generate an image of it using the PlantUML tool.

Other Miro solutions


Miro’s all-in-one diagram maker removes the hassle of switching between diagramming and collaboration tools while helping you check off all the essential steps of your diagramming process.

UML diagram tool

Visualize, build, and document software systems and processes with a UML diagram. Design and communicate technical plans with a unified language that everyone understands.

Sequence diagram tool

Map out systems and interactions between different actors using Miro’s sequence diagram tool. Picture success cases, troubleshoot issues, and understand events as they happen within a system.

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Join thousands of teams using Miro to do their best work yet.

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