Even though many people are stating that responsive web design is taking more time and money to implement it isn’t at all true. It may be a statement of frustration to try to minimize the importance of RWD and start a movement against it.
Designing for various viewport sizes does take time only when you do it for the first time. After that, it is easier than riding a bicycle. You’ll notice that everything will seem normal and not outrageously new and hard to implement.
A problem that a web designer has always faced is testing the websites that he or she creates and this part of the process has always annoyed us, because we had to make a website for various browsers. Guess what, with responsive web design, now you have to design for various screen sizes too. Can you handle the pressure? Yes, you can. It’s simple. You just need to have a tool that you can use in these situations.
In this article you will find 21 tools to test responsive websites from which you can choose the one that you consider best.