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14 Top Responsive Web Design Testing Tools for Designers

Responsive Web Design is regarded as being the approach which suggests that web design and development should respond to the end-user’s behavior and environment based on their screen size, platform and orientation.


DimensionsApp is yet another mobile and tablet online simulator that helps you test your responsive website at various browser sizes. It also lets you preview it on a virtual smartphone/tablet at different orientations using the rotate option. You can work offline using their Chrome app extension


The Responsive Calculator

Responsive web design works well with a percentage-based layout, which is exactly where this tool comes in handy. It helps you convert your pixels into percentages with a single click.The-Responsive-Calculator-for-Responsive-Web-Design-1024x164-1

 Responsive Design Calculator

Most fluid designs use the REM (root em) unit and if you are among those who use REMs to set font sizes on your fluid layout, this calculator tool is for you



Another REM calculator tool is provided by and it helps you convert your font sizes from pixels to REM.


Simultaneous device browsing

Once you start to build up your collection, a tool like Remote Preview saves a lot of time. It lets you preview your site on a large number of mobile devices at the same time, so you can quickly scan through your pages across devices and pick up layout and behaviour issues.


Visual regression tests

PhantomJS has another killer feature. You can take fully rendered screen shots of your site. We use this to crawl the site, taking shots of pages on our live site and re-running on our test server. You can process the images with ImageMagick to compare each page at each resolution. Picking out visual regressions becomes a piece of cake.


Created by typecast, is an online responsive web design testing tool that only requires you to enter your site URL and press GO. In the auto mode the tool gives you a preview of by default. Type in your URL and check to see if your responsive design fits appropriately on the desktop, tablet and smartphone screen-size simulators



Enter the URL of your off or online site to see how it looks on different screen sizes (both standard and custom sizes included). You can find the exact breakpoints in pixels and update your web page’s media queries to create the responsive design you are looking for. You can also share the URL of the adjusted site viewport with your colleagues to discuss your design modifications online.Responsive.px-for-Responsive-Web-Design


Responsinator lets you preview your web page on smartphones and tablets in both portrait and landscape mode. Due to the virtual screen size borders on the digital device simulators, Responsinator gives you a realistic experience of viewing your site on multiple screens.


 Responsive Web Design Testing Tool

Test your responsive web design by width size or device size with this user-friendly testing tool. Devised by Matt Kersley, there is also a GitHub repository available so that you host your site on your own server for testing.Matt-Kersley-Testing-Tool-for-Responsive-Web-Design-1024x486


Screenfly is an online digital device simulator tool that is extremely easy to use and gives you a wide variety of options, including visualization on variously sized desktop monitors and on a virtual television screen.Screenfly-for-Responsive-Web-Design

Designmodo Responsive Test

Designmodo is a responsive website testing tool that helps test your website among an extensive choice of screen sizes. Just type in the URL and select the device type or enter a custom dimension.Designmodo-for-Responsive-Web-Design-1024x537

Originally posted 2014-07-30 18:38:56.

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