Online UML Diagram Editor

Create professional UML diagrams online with an intuitive drag-and-drop editor. Supports all UML diagram types with export options.

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100%

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About This Tool

This online UML diagram editor provides a complete solution for creating Unified Modeling Language diagrams directly in your browser. With an intuitive drag-and-drop interface, you can easily create class diagrams, sequence diagrams, use case diagrams, activity diagrams, and more. The editor includes a comprehensive toolbar with all standard UML shapes and connectors, a properties panel for customizing elements, and export functionality to save your diagrams as PNG or SVG files. No installation or registration required - start diagramming immediately.

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How to Use

Select a shape from the toolbar on the left
Click on the canvas to place the shape
Drag connectors from the toolbar to connect shapes
Use the properties panel on the right to customize text, colors, and styles
Click 'Export Diagram' to save your UML diagram as PNG or SVG
Use 'Clear Canvas' to start a new diagram

Frequently Asked Questions

Find Quick Answers

What types of UML diagrams can I create with this editor?

You can create all standard UML diagram types including class diagrams, sequence diagrams, use case diagrams, activity diagrams, state machine diagrams, component diagrams, and deployment diagrams.

Can I save my UML diagrams to my computer?

Yes, you can export your diagrams as PNG or SVG files using the 'Export Diagram' button. The exported files can be saved directly to your device.

Do I need to create an account to use this UML editor?

No, this is a completely free online tool that requires no registration or account creation. All diagramming happens directly in your browser.

Can I collaborate with others on the same UML diagram?

Currently, this is a single-user editor. Each user works on their own diagram independently. For collaboration, you can export the diagram and share the file with others.

What browsers are supported for this UML diagram editor?

The editor works on all modern browsers including Chrome, Firefox, Safari, and Edge. It requires JavaScript to be enabled in your browser.

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