Prototyping is building a simulation of how a completed project will work. It allows designers to show how an entire application will function. This process is very good to explain functional mechanics to the team developing the product and also for stakeholders to understand what they are getting. In not so many words, it’s used illustrate how a final product will look and perform.
Are you looking for tools that can help you with prototyping? There are a lot of prototyping tools out there, some free others paid. It all depend on your needs. Here’s a great list of tools that can help you with your endeavor.
Looking for other tools to help you with your development process? Check out this list of 50 Web Development Tools from 2015.