Want to draw UML activity diagram online for free?

Visual Paradigm Online Free offers a free UML activity diagram tool for personal uses. No matter you are a student or educator, you can start creating activity diagrams with an online, flexible and simple UML software now! As an all-in-one diagramming solution, VP Online also supports ERD, org. charts and floor plan, for free! Advanced diagram types such as flowchart, ArchiMate, BPMN, mind map are all available in higher editions at very low cost.

Free Activity Diagram Software

Professional activity diagram starts here

Simply Free

Create as many UML diagrams as you like. Output your work as images (PNG/JPG/GIF/SVG) or PDF. Enjoy!

  • No limited number of diagrams and shapes
  • Non-restricted accessing period
  • No banner / advertisement

Draw Fast

Create professional activity diagrams in a snap. Our online UML tool features:

  • Drag and drop interface
  • Connectors attached (no separate apart)
  • Format Copier: Instant format copying
  • Keep a lib of shape patterns for reusability
  • Several hundreds of diagram templates

Better Results

A full set of diagram editing features is available for you to draw the diagram you need.

  • Alignment guide for precise positioning
  • Include images, URLs and text in diagrams
  • Formatting options for shapes and lines
  • Rotate shapes and text
  • Group, align and distribute shapes
  • Auto. create shape from text list


Key features and benefits

Key features and benefits
  • Unlimited period of access
  • Unlimited number of diagrams
  • Unlimited number of shapes
  • UML Model, ER Model, Organizational Chart, Floor Plan, Business Concept Diagram, ITIL
  • Can be upgraded to paid editions for more diagram types and features
  • Cross platform support: Windows, Mac, Linux. Also compatible with all web browsers
  • Easy to use: Create and connect shapes with drag and drop. Connectors are always attached to shapes and never separate apart.
  • Apply different formatting options (shape and lines, solid and gradient paint), 40+ connector types, RTF caption, font options, shadow effect, etc
  • Build your own shape library to create diagrams with your own shapes.
  • Easily add text, notes, external images, web links to diagram
  • Print and export into different formats (PNG, JPG, SVG, GIF, PDF)
  • Hundreds of start-up diagram examples and diagram templates
  • Save your drawing in Google Drive
  • Visio drawing and stencil import

But don't take our word for it

Try it yourself. Just browse the Activity Diagram examples below and click Open Diagram to open and edit. You will see for yourself that it is everything we say it is, or perhaps more.

Activity Diagram Example: Product Delivery

Open Diagram

Activity Diagram Example: Product DeliveryOpen Diagram

Activity Diagram Example: Order Processing

Open Diagram

Activity Diagram Example: Order ProcessingOpen Diagram

Activity Diagram Example: ATM

Open Diagram

Activity Diagram Example: ATMOpen Diagram

Activity Diagram Example: Completing Assignment

Open Diagram

Activity Diagram Example: Completing AssignmentOpen Diagram

Activity Diagram Example: Article Submission

Open Diagram

Activity Diagram Example: Article SubmissionOpen Diagram

Start Drawing Your Free Diagram Today

No limitations, no obligations, no cancellation fees.


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