Need a Free Activity Diagram Tool?

Try Visual Paradigm Online (VP Online) Free Edition. It is a FREE online drawing software with support to UML Activity Diagram and other UML diagrams, ERD and organization chart. You can easily draw Activity Diagram through the simple, intuitive UML editor. As a real free drawing tool, there is no ad, no limited period of access and no limitations such as, number of diagrams, number of shapes, etc. You own the diagrams you created for personal and non-commercial purposes.

Make an Activity Diagram

Activity Diagram created in seconds

Free Activity Diagram Tool

Create as many UML drawing as you need and output them into images. No ad.

No limited number of diagrams and shapes
Unlimited accessing
No advertisement

Easy to Use

Create UML can be simple and fun. Listed below are some of the editing features of our intuitive Activity Diagram editor:

Drag-to-create shape
Well attached connectors (no separate apart)
Include your own shapes in your UML model
Hundreds of diagram templates

High Quality Work

Position shapes precisely with alignment guide. Format your Activity Diagram with the array of formatting options we provide: shape and line format, font style, RTF shape caption, rotatable shapes, shape alignment and distribution, embed image and URL, etc

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.