Online & Free UML diagram tool

Create professional visualizations of your business processes with our free UML tool.
tick-mark 100+ diagramming templates
tick-mark Complete UML stencils set
tick-mark Real-time collaboration
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Create my UML diagram now No credit card required
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Make Fast UML Models Online

Collaborate in real time with our UML editor. Choose from 100's of diagramming templates to customize, or drag and drop to build your own.

UML No download
Use Any Browser Work cross-platform with the same UI on Microsoft Windows, MacOS, or Linux.
UML 2 Elements
UML 2 Elements Create Unified Modeling Language diagrams using industry standard drag and drop elements.
UML Sharing
Share instantly Collaborate in real time, share via live link or file-sharing apps, and export to PNG, PDF, or HTML.

Create any UML Diagram type in minutes

Draw UML diagrams to visualize a wide variety of complex systems and business processes.

UML Class diagram
Class diagram Use a UML Class diagram to show a system's classes, their relationships, and the attributes and operations of those classes.
UML Sequence diagram
Sequence diagram Use a UML Sequence Diagram to show object interactions and the messages exchanged along a system’s time sequence
UML Use Case diagram
Use Case diagram Create a UML Use Case diagram to summarize the actions a live system performs as internal and external users interact with it.
UML Activity diagram
Activity diagram Create a UML Activity diagram to model the coordination of activities in business, or operational workflows.
UML Component diagram
Component diagram Build a UML Component diagram to depict relationships between a system’s components, interfaces, and ports.
UML Composite structure
Composite structure diagram Use a UML Composite structure diagram to show the structure of a class, and how its properties fit together to perform a behavior.
UML Deployment diagram
Deployment diagram Model the run-time architecture of a system by visualizing its hardware and software with a UML Deployment diagram.
UML Package diagram
Package diagram Create a UML Package diagram to visualize the arrangement and organization of a system’s related elements as packages.
UML Profile diagram
Profile diagram Tailor your model to a domain by defining custom stereotypes, tagged values, and constraints in a UML Profile diagram.
Create my UML diagram now No credit card required

Map out all kinds of flows

With our flowchart maker and drawing tool, your team can make whatever flow they need – in addition to UML diagrams – at every stage of their project’s development.

Process Flowchart Process Flowchart
Org Charts Org Charts
ER Diagrams ER Diagrams
UML Diagrams UML Diagrams
Mind Maps Mind Maps
diagram-card Site Maps
jira & atlassian

Jira & Confluence Integrations

Integrate with Atlassian to create, edit and embed your team's diagrams and flowcharts right in Jira issues and Confluence pages.

Go further with Moqups

Maximize your data’s impact by adding your UML diagrams to user interfaces, dashboards, wireframes, prototypes, whiteboards, and diagrams – all within the same app!
Wireframing
Wireframing
Diagramming
Diagramming
Brainstorming
Brainstorming
Prototyping
Prototyping

Collaborate creatively

Work out ideas, solve problems, and come to a quick consensus. Your team can share, communicate, and coordinate – at every level – with our visual collaboration tool.
icon-realtime Real-Time Editing
icon-comments Visual Comments
live-chat-icon Live Chat
team-roles-icon Team Roles
share-icon Sharing

Hear from our customers

As both a product owner and a CEO with 75 employees, I use Moqups primarily for product design. But we’ve also used it for everything from org charts to laying out our office space. It’s incredibly intuitive, fast, and accessible everywhere. It’s literally my favorite tool.
Luke Freiler
Luke Freiler, CEO at Centercode
With Moqups, I can do flowcharts and wireframes and sitemaps all in one project, which is awesome for managing.
Dave Thackeray
Dave Thackeray, Content Strategist at Word and Mouth
Creating interactive wireframes for complex designs is key to our success in developing award-winning apps for our clients. Moqups' collaborative features help us communicate clearly at every stage of development – from inception to implementation.
James Lane
James Lane, US Customer Success Specialist at Nabler
What’s the software I spend the most time on? After communication tools, it’s definitely Moqups. It’s by far the best wireframing solution I have ever used. Such a pleasure designing our products at eFounders in a product that itself is elegant and intuitive.
Thibaud Elziere
Thibaud Elziere, CEO of eFounders and FolkHQ

Join over 2 million users

Take Moqups for a test drive and discover why it's the perfect UML modeling tool for your whole team.

Create a free UML diagram