UMLet 14.3
Free UML Tool for Fast UML Diagrams

UMLet is a free, open-source UML tool with a simple user interface: draw UML diagrams fast, build sequence and activity diagrams from plain text, export diagrams to eps, pdf, jpg, svg, and clipboard, share diagrams using Eclipse, and create new, custom UML elements. UMLet runs stand-alone or as Eclipse plug-in on Windows, OS X and Linux.
Also, check out our other tools, especially our new web-based UMLet, called UMLetino; visit us on Facebook; or read our book.

New in 14.3: improved OS and Eclipse integration (thx @ruediste); XML security fix

New in 14.2: fixed pixel displacements; improved relations; embeddable pdf fonts

New in 14.1: new custom elements; new sequence all-in-one

If you like UMLet, please star us on Eclipse Marketplace!

FAQ/help --- Custom Elements Tutorial --- Sample UMLet diagrams

Sample diagrams
Eclipse plug-in info
User comments
Source code

Bugs or requests:
Create code ticket,

Book: Value-at-Risk

- Add elements to a UML diagram with a double click
- Edit elements using the lower-right text panel
- Use Ctrl+Space for context-sensitive help
- Select multiple elements using Ctrl or lasso
- Press 'C' to copy diagram to the system clipboard
- Use +/- or Ctrl+mousewheel to zoom
- Press Shift to avoid sticking relations!

UMLet Video Tutorial:

UML Tool Concepts:

UMLet is a UML tool aimed at providing a fast way of creating UML diagrams. UML elements are modified using text input instead of pop-up dialogs. Elements can be modified and used as templates; this way, users can easily tailor UMLet to their modeling needs. UMLet supports a variety of UML diagram types: class diagrams, use case diagrams, sequence diagrams, state diagrams, deployment diagrams, activity diagrams -- see some examples.

UMLet allows users to create their own custom UML elements. An element's look can be modified at run-time by changing a few lines of Java code; UMLet then compiles the new element's code on the fly. Without leaving UMLet, users can thus create and add new element types to their diagrams.

UMLet's design goals are also described in this paper and this one. Custom elements are described here.

You can support this UML tool via PayPal, or votes on Eclipse Marketplace - We really appreciate your support!

Distributed under the GNU General Public License.