Pencil is a Free & Open Source Sketching & GUI Prototyping Software for Firefox. The Pencil Project’s unique mission is to build a free and open source tool for making diagrams and GUI prototyping that everyone can use.
With the power of the underlying Mozilla Gecko engine, Pencil turns your excellent Firefox 3 browser into a sketching tool with just a 400-kilobyte installation package.
Some Pencil Features
- Built-in stencils for diagraming and prototyping
- Multi-page document with background page
- On-screen text editing with rich-text supports
- PNG rasterizing
- Undo/redo supports
- Installing user-defined stencils
- Standard drawing operations: aligning, z-ordering, scaling, rotating…
- Cross-platforms
- Adding external objects
Pencil is Free and Open Source and can be run on both GNU/Linux and Windows as a Firefox addon or a standalone application using XULRunner.
Website: http://www.evolus.vn/Pencil/Home.html
Download: http://www.evolus.vn/Pencil/Downloads.html