The Pencil Project is an open-source software for all operating systems, that lets you quickly create mockups, prototypes, flowcharts, and diagrams. It is absolutely free & very easy to use. You can download additional free stencil packs from here.
The Pencil Project is an open-source software for all operating systems, that lets you quickly create mockups, prototypes, flowcharts, and diagrams. It is absolutely free & very easy to use. You can download additional free stencil packs from here.