Balsamiq Wireframes is a rapid low-fidelity UI wireframing tool that reproduces the experience of sketching on a notepad or whiteboard but using a computer. Balsamiq is the first tool out of your UX toolbox: faster than the sketchbook, and almost as fun to use. It forces you to focus on IA the rest can come later. Balsamiq is the perfect first UX tool for students or anyone interested in getting into UX. It's by far the most approachable and takes you 80% there to pro.