6 great tools for testing responsive design for websites

Testing responsive design for websites is important to ensure that your site will look and behave they way you want on different devices. Every modern web designer will know the principles of responsive web design, which aims to make sites render perfectly on whatever device or screen size they appears on. (see our pro’s guide to responsive web design for a refresher). 

But theory is one thing, and practice is another. To ensure your site is fully responsive, you need to test it on different device. Most of us don’t have the budget to acquire the hundreds of physical devices needed to carry out a real-world test, but, happily, there are other solutions. The website testing tools below allow you to test responsive design in a virtual environment.

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Tom May
Freelance journalist and editor

Tom May is an award-winning journalist and author specialising in design, photography and technology. His latest book, The 50th Greatest Designers, was released in June 2025. He's also author of the Amazon #1 bestseller Great TED Talks: Creativity, published by Pavilion Books, Tom was previously editor of Professional Photography magazine, associate editor at Creative Bloq, and deputy editor at net magazine. 

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