7 Responsive Web Design Testing Tool

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web design testing tool

Every web designer should know the principles of responsive web design. In order to deliver a consistent user experience you need to focus on UAT testing. To ensure your site is fully responsive, you actually need to test it on different devices. But in reality you can’t have all the devices and browsers. Fortunately, there are some great web design tools available to help alleviate the pain of responsive design testing. Today we list down 7 responsive web design testing tool. These tools letting you test your responsive designs within a virtual environment.


With XRespond app you can preview the website looks on a variety of devices. The site works in a vertical and horizontal style where you have to scroll sideways to see all the screen formats.

You can select the device from the drop-down menu. There is wide selection of smartphones, tablets, and laptops for testing specific devices. That drop-down even supports a custom width/height setting if you want to see how your site appears on specific monitors. An excellent testing tool for responsive design and it supports a lot of variety in device styles



Simplicity is the major advantage of Responsinator. Just type the URL of the website and it will show you how your web page renders in the most popular screen shapes and sizes.

Devices include the most common iPhones and the Android Nexus devices, both with portrait and landscape previews. You’ll also find iPad device previews also in portrait and landscape


Responsive Design Checker

Need to quickly check if a website really is responsive? Then try using this Responsive Design Checker made specifically for custom screen sizes. So if you’re struggling to test 1920px monitors on your smaller MacBook screen this tool is well worth bookmarking.

In the sidebar you’ll find a ton of predefined screen sizes for common devices like Nexus tablets, Kindles, and even newer phones like the Google Pixel.


Am I Responsive

This is not a tool for testing, it is really important that you do that on real devices. This instead it is a tool for quick screenshots and visually allow you to explain clients what you mean by responsive design. It only supports viewport sizes for Apple devices.

You simply enter a website URL and it’ll load into four device preview panes: a smartphone, tablet, laptop and desktop. These are not to scale so you’re only looking at the site as a ratio.

The advantage of this tool is to lets run localhost addresses so you can even check projects you’re building locally on your computer.


Responsive Test by Designmodo

This free tool lets you preview a site in your browser based on certain widths. But the one cool addition to this tool is the grid-based page setup. You can check your page for pixel points using this webapp.

Another feature is that you can drag and adjust the preview pane to fit whatever screen widths you’re testing. It has inputs for the width/height if you need to enter sizes manually too. Even you can select devices from top-right corner and test your website



Screenfly is another fantastic multi-device compatibility testing tool which allows previewing web pages as they appear on different devices. The most popular ones include tablet and other smartphone devices like Galaxy Tab, Apple iPad, Motorola Xoom. Additionally, it supports different screen sizes and resolutions. The site automatically detects if the URL entered has a mobile site and redirects you to it. To switch between screen resolutions, all you need to do is click on the icon of the device type or choose the device which has closest in screen resolution.


Google Mobile Test

Google is full of great tools for webmasters and their Mobile-Friendly Test is one such example.

This testing tool isn’t really a previewer and it doesn’t help you spot UI bugs. But it’s a dedicated mobile tool for pinpointing issues within your site on mobile.

Once the test runs you’ll either pass or fail as a mobile-friendly site. This is a little too generic for designers but Google offers tips based on problem areas & page elements that could use improvement.

Keep this saved as a trustworthy mobile testing tool. It’s not a complete resource for responsive testing but it’s a great place to gather info and it comes from perhaps the most authoritative company on the web.


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