UMLet

UMLet is a tool with a simple user interface for designing, editing and exporting UML diagrams. Diagrams can be saved as files with BMP, EPS, GIF, JPG, PDF, PNG or SVG file extensions, or directly printed or sent as an attachment in an email message. When creating a design, not only the actual diagram is displayed, but also the source code, based on which the drawn elements can be additionally modified (font configuration, font size or grid display for more convenient design, etc.).

• add elements to a UML diagram with a double click
• edit elements using the bottom right panel
• using Ctrl+Space for contextual help