Finding a free, web-based activity diagram software?

Visual Paradigm Online is a web-based diagramming software designed for fast creation of technical and business drawing. Its free UML design tool lets you create UML activity diagram easily through drag-and-drop. The Free Edition is free for non commercial use and supports not only UML activity diagram but also the other UML diagrams and ERD.

Make an Activity Diagram

Easily create beautiful activity diagrams

Free Software

Free UML software ready for non commercial uses!

No limited number of diagrams and shapes
No limited period of access
No advertisement

Simple & Quick Diagram

Online drawing can be simple. Here are some of the editing features that help you draw diagrams effortlessly:

Drag and drop based editor
Reliable connectors (no separate apart)
Format copier
Keep a lib of shape template for reuse
Hundreds of start-up templates

Be a Pro.

A range of powerful diagramming tools are there to support you in producing great activity diagrams:

Alignment guide: Position shapes accurately
Embed your own image, URL and text
Shape and line formatting options
Rotatable shapes and text
Group, align and distribute shapes
Auto. create shape from item list

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.