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  • Rated by Anjaethno on Apr 15 2009, 2:24am

    Free and open source gui prototyping tool. Looks nice.
  • Rated by Domthedude001 on Dec 20 2008, 12:43pm

    Lightweight, great!
  • Rated by lolobioman on Oct 07 2008, 5:19pm

    free and open source GUI prototyping tool. Working as a firefox add-on or standalone.
  • Rated by Henru82 on Sep 03 2008, 11:23pm

    GUI prototyping's never been this easy. Highly recommended!
  • Rated by onreact-com on Aug 30 2008, 1:56am

    I do not get what exactly it is but it looks great.
  • Rated by italosiqueira on Aug 24 2008, 5:17am

    A light-weighted GUI prototype designer as a Firefox add-on. Provides all the simples facilities to sketch simple (and not -so simple ones) GUI's, it's extensible and gives the user the option to save his work as a PNG file.
  • Rated by avigle on Aug 13 2008, 9:57pm

    The Pencil Project -- From the page: "The Pencil Project's unique mission is to build a free and opensource tool for making diagrams and GUI prototyping that everyone can use. Top 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 * And much more... Pencil will always be free as it is released under the GPL version 2 and is available for virtually all platforms that Firefox 3 can run."
  • Reviewed by Vadi2 on Aug 06 2008, 10:24am

    Looks like a gimped version of Glade to me. The "absolute positioning" mindset of the program is pretty bad for good UI design also.
  • Rated by lucianop on Jul 24 2008, 1:41pm

    Amazing prototyping tool. Highly recommended!
  • Rated by buggabill on Jul 23 2008, 9:30am

    This is a nice prototype tool.