Wireframes and mockup applications are the most essential tools for every web designer and developer. Although, some web designers and developers do not use such tools while some rely on them to a great extent. In this way, the significance of such tools and applications vary among different designers and developers. On the other hand, it goes without saying that wireframes and mockup applications can save plenty of time. Therefore, keeping a good collection of useful mockup applications and tools can come handy at the time of need.