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Once you have decided to open up a website and have done the designing par too. What do you think should be the next step? Test! I use the word test for checking how well your website responds to different screen and browser sizes. Testing is an important step of responsive web design process. If you all know what exactly I am talking about is that you need to make your website useful on any type of device.

In today’s world where technology rules and immense range of gadgets being made available users are not just sticking to laptops, and desktops to use the internet. Thanks to the blazing fast speed of data packs being made available by telecom companies. This makes it essential for designers to make sure that the websites work well in various devices.

Fortunately, this is not a big issue. There are many best free responsive web design testing tools available online that help you check if your website designs is responsive to various devices in a user-friendly manner or not. The websites should be user-friendly and responsive for various devices available. Creating a smart, flexible, adaptable web experiences with responsive/multi-device web design is sure to be a success.

best-free-responsive-web-design-testing-tools

Listed below are best tools and resources for helping you design a website for different gadgets varying in size and operating systems. There us no need of custom coding knowledge required if you wish to use the below listed tools and resources for responsive web design testing.

Best Free Responsive Web Design Testing Tools

1. Responsive Design Bookmarklet

Responsive Design Bookmarklet is a handy tool for responsive design testing. You simply need to drag the bookmarklet above your bookmarks bar and it will be applied in your browser. How it works : Firstly, Toggle a fake keyboard to see how much space is visible when users are entering data in forms. There after Toggle CSS Refresh.

When you save a CSS-file, the changes are directly implemented, without any need of refreshing the browser you are working in. Lastly, close the bookmarklet and return to the current page. This lets you preview the current page on screen widths that fits the size of tablets and smartphones.

best-free-responsive-web-design-testing-tools

2. jResize Plugin

jResize is a responsive web development tool, built in jQuery for assisting the workflow of developers on responsive projects. Embedded in the page are iframes at different widths. So, it becomes quite easy to resize your HTML within your browser. All you have to do is download this cool tool and when you click the width you want, the size changes accordingly.

best-free-responsive-web-design-testing-tools

3. resizeMyBrowser

resizeMyBrowser is a tool for responsive web design that allows you to choose the dimensions of your browser for testing. Users can choose between 15 different presets or enter their own custom screen sizes.

best-free-responsive-web-design-testing-tools

4. Screenqueri.es

Screenqueri.es is a pixel perfect responsive design testing tool that lets you test your responsive design on 30 different device resolutions presets or check with custom resolution by resizing window.

best-free-responsive-web-design-testing-tools

5. The Responsive Calculator

The Responsive Calculator is a tool that makes it easy for the designers easy way to convert pixel to percent in a given context.  It helps you turn your PSD pixel perfection into the start of your responsive website. Simple click does the needful.

best-free-responsive-web-design-testing-tools

6. Screenfly

Screenfly  by QuirkTools is an online digital device simulator tool that lets users view their responsive website in different devices viz. desktop, tablet, mobile or TV. It is easy to use and as mentioned gives you a wide variety of options like visualization on variously sized desktop monitors and on a virtual television screen. Besides it has options to enable or disable scrolling or even to rotate the display.

best-free-responsive-web-design-testing-tools

7. The Responsinator

Responsinator is a cool tool/an online portal that lets you preview your web page on smartphones and tablets in both portrait and landscape mode. Besides, Responsinator gives you a realistic experience of viewing your site on multiple screens. Just enter a URL and preview it on an iPhone, iPad, Kindle, and other Android phones.

best-free-responsive-web-design-testing-tools

8. Viewport Resizer

Viewport resizer is a browser-based tool that lets users test any website’s responsiveness. Users simply need to save the bookmarklet, go to the page they want to test, click on the created bookmarklet and check all type of screen resolutions of the page.

best-free-responsive-web-design-testing-tools

9. Respondr

This is a simple and helpful tool that asks you to enter the URL of the site/page that you want to test and then select the device of your choice.

best-free-responsive-web-design-testing-tools

10. ReView.Js

Developed by Edward Cant, ReView is a dynamic viewport system that provides efficient responsive web design viewing choice. Users can opt from ‘Opt-In’ and ‘Opt-Out’ responsive design states.

best-free-responsive-web-design-testing-tools

11. Designmodo Responsive Test

Designmodo Responsive Test as the name hints is a responsive website testing tool that helps you 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. The image below shows our website’s responsive test.

best-free-responsive-web-design-testing-tools

12. Adobe Edge Inspect

Adobe Edge Inspect CC lets you preview and inspect web designs on various devices. It enables synchronized browsing remote inspection, taking screenshots, edge tools integration, extensibility and much more.

best-free-responsive-web-design-testing-tools

13. responsivepx

Its a cool online portal or tool as you may call it for testing your responsive website design. It lets you resize the website pixel-by-pixel. This feature will enable you to identify the breakpoints and test how the CSS media queries work in your site.

best-free-responsive-web-design-testing-tools

14. DimensionsApp

DimensionsApp is a mobile and tablet online simulator that helps you test your responsive website on differnt devices like tablets, wide tables, mobiles and like wise. Just enter the URL of your blog anc click on various device names to see how your website appears on these devices.

best-free-responsive-web-design-testing-tools

Do you have any free responsive web design tools in mind other than the ones listed above? If yes, then feel free to share with us and our viewers.