Activity Diagram Generator

Create UML activity diagrams from text descriptions. Edit the code on the left and see the diagram update in real-time.

Diagram Code
Untitled Diagram

Syntax Guide

Basic Nodes

  • A[Process]Rectangle (Process)
  • B(Decision)Rounded Rectangle
  • C{Decision?}Diamond (Decision)
  • D((Start/End))Circle (Start/End)
  • E> Data Input]Asymmetric shape

Connections & Flow

  • A --> BArrow connection
  • A -->|Yes| BLabeled arrow
  • A -.-> BDotted line
  • A ==> BThick arrow
  • A --- BLine without arrow

Examples

User Authentication Flow

A typical user login and session management flow

Order Processing

E-commerce order processing workflow

Software Development Lifecycle

SDLC workflow from requirements to maintenance

Feedbacks

If you find bugs or would like an improvement, please Send an email.

Support Me

If you find my tools useful, please consider supporting me to help maintain and improve these free utilities.

© 2025 Utility Apps (agi.vinh@gmail.com). All rights reserved.