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 and etc. You own the diagrams you created for personal and non-commercial purposes.
Create as many UML drawing as you need and output them into images. No ad.
創建UML可以簡單而有趣。以下是其中一些強大的編輯功能:
利用對齊導軌 (Alignment Guide) 精確定位形狀和連接線。使用格式化選項讓活動圖變得更豐富:形狀和線條格式,字體樣式,RTF形狀標題,可旋轉的形狀,形狀對齊和分佈,嵌入圖像和URL等
只需瀏覽下面的UML 圖表示例,點擊開啟圖表打開編輯器,您將親眼印證我們所說的一切 。