Sketch and Create GUI Prototypes in Firefox with The Pencil Project
As more and more add-ons are being developed for Firefox, it’s interesting to see what all a browser can be turned into. The Pencil Project is a Firefox extension using which you can draw and design GUI prototypes (having elements like buttons, combo boxes, text boxes) easily by drag and drop. It uses Firefox’s underlying Mozilla Gecko engine.
These are some of the features offered by Pencil Project:
- Built-in stencils for diagramming 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
After it is installed, Tools –> Pencil Sketching will start the application. Pages are arranged in tabs.


Organizing a birthday party or get-together? 