As we all know very well that responsive website designs are very important and their demand was increased in year 2013. The reason behind this increased demand was a huge increase in the popularity of smart-phones, Androids, iPhones and Tablets that we see in the year 2013.

That’s why talented and experienced developers and designers always look for such useful tools so that these tools make things easier for them. Designers and developers can earn very much if they design responsive website.

Today, we are presenting some very handy and useful responsive web design toolboxes for your responsive websites. Hope you will like this collection and this collection proves to be the best and helpful for you. Please tell us that what you think about this collection, our comment section below.

Boilerplates & Frameworks

1. Bootstrap

This framework is for faster and easier web development. It is sleek, intuitive and powerful front-end framework with a 12-column responsive grid, dozens of components, JavaScript plugins, typography, form controls, and even a web-based Customizer.

2. Gumby 960 Grid Responsive CSS Framework

This framework is for those who want to lay out pages quickly and easily in a natural, logical way. This framework can be customized and molded to fit your every need. Moreover, it can easily adapt to any screen size or application. Thus, the possibilities are endless and the results are outstanding.

3. Golden Grid System

With this system, developers can split the screen into 18 even columns where the leftmost and the rightmost columns serve as the outer margins of the grid leaving the remaining 16 columns for use in design.

4. The Semantic Grid System

The Semantic Grid uses a parametric LESS mixin or a SCSS or Stylus mixin, depending on which framework you prefer in order to control the layout in the style sheet where it belongs.

5. Ingrid – A Fluid CSS Layout System

This framework is designed to reduce the use of classes on individual units. It is an easy to customize and an extendable system.

6. Toast – A Simple CSS Framework

It is a simple CSS framework that with its 12 columns responsive grid makes layouts a breeze. You can also add padding and borders to the grid very easily without breaking anything.

7. HTML5 Boilerplate

Now, you can build fast, robust and adaptable web apps or sites very easily with this framework. It is a sum of knowledge and efforts of 100s of developers.

8. Wirefy

This wireframe was built on the principles of content first and therefore, it lets you create more functional and responsive wireframes using standard elements. This framework focuses on the content rather than the subjective design elements.

9. Gridiculous

With this HTML5 framework, you can take your website from 1200px all the way down to 320px. This way, you can make your website look good on desktop browsers, tablets and handheld devices.

10. Columnal – A Responsive CSS Grid System

This is a responsive CSS grid system that helps desktop and mobile browsers to play nicely together.

11. Gridless

With this HTML5 and CSS3 boilerplate, you can make mobile first responsive, cross-browser websites with beautiful typography.

12. Skeleton

This boilerplate is for responsive and mobile friendly development.

13. Responsive Grid System

This is another framework that is available in 12, 16 and 24 columns with media queries for all standard devices, clearfix, and optional reset.

14. Foundation

Foundation: Responsive Front-end Framework is the most advanced responsive front-end framework in the world.

Flexible, Fluid Grid

15. Gridset

Gridset makes designing grids a breeze for you. it has everything you need from PNGs to a comprehensive cheat sheet and CSS.

16. Responsive Calculator

With this simple responsive calculator, you can turn your PSD pixel perfection into the start of your responsive website.

17. Gridpak

This tool was designed by Erskine Design and it is for creating grids.

18. Simple Grid

Say goodbye to horizontal scrollbars with Simple Grid as it is prepared for 4 different ranges of screen sizes so that your visitors will receive a layout that is turned to the size of their browser window. The screen sizes are: screens < 720px, screens > 720px, screens > than 985px, and screens > than 1235px.

19. Foldy960

This is not a CSS framework and we are afraid to use the term boilerplate for it as it is a little kit to get you going on making your 960.gs design responsive.

20. SUSY

This tool lets you create grids that are powerful yet custom, reliable yet responsive. This helps you create responsive layouts.

Sketch Sheets & Wireframes

21. Responsive Web Design Sketch Sheets

This tool will help you in finding out how your website looks in different resolutions. Using this tool is no difficult at all. Download the zip file and get going.

22. Responsive Wireframes

This experimental tool can be used to visualize how your responsive design would look like on actual browsers of various desktops and mobile devices.

23. StyleTiles

With StyleTiles, you can communicate the evolution of a visual brand for the web. It contains fonts, colors and interface elements.

24. Multi-Device design prototype

This tool will be of great help for you as it provides several popular patterns for responsive websites so that you can know how people before you have handled making a responsive website.

JavaScript & JQuery Plugins

25. Adapt.Js

This JavaScript plugin is a great alternative to the CSS media queries. It is a lightweight javascript library which is very helpful for you.

26. Isotope

With this jQuery plugin, you can easily rearrange the elements of a page when the browser window is resized or the screen size is smaller. You can also filter those elements.

27. Masonry

This jQuery plugin can be used to create dynamic and adaptive layouts. You can also rearrange the elements in your responsive design so that they will fit better in the open-spots on the grid.

28. Respond.Js

This is another lightweight and fast plugin that lets you enable responsive web design in browsers like IE. Its weight is 3 Kb minified and 1 Kb gzipped.

29. TinyNav.Js

This small and lightweight jQuery plugin allows you to convert big navigation lists into small dropdown menus for smaller screens.

30. Wookmark JQuery Plugin

With this plugin, developers can easily detect the browser window size. The plugin can automatically arrange the elements of the page into columns.

Responsive Image and Text Tools

31. Adaptive Images

With this tool, you can detect the screen size of your visitor and deliver a device appropriate re-scaled versions of your web page’s embeded HTML images with no mark-up changes required.

32. Seamless Responsive Photo Grid

This tool lets you show images edge to edge without any gap in between the images.

33. Picturefill

A Responsive Images approach that you can use today!

34. Retina Images

This tool provides retina images means that it shows 2x larger and high resolution images when viewed on retina display devices.

Responsive Text Tools

35. FitText

You can make your texts and headlines responsive to the devices that are being used with this tool.

36. SlabText

Another tool with the same purpose, but this tool can additionally resize your text responsively and responsible for user’s viewability.

Testing & Preview

37. ProtoFluid

This is a web based prototyping tool for testing your website prototypes in different screen sizes and resolutions.

38. Responsive.Is

Another tool for testing your responsive design. This will automatically changes the size based on the device being used.

39. Responsivepx.Com

Another great tool for testing your responsive website design. with this tool, you can resize the website pixel-by-pixel.

40. Responsive Web Design Testing Tool

You can view your responsive website with this tool in different screen sizes simultaneously in a single screen.

41. ReView.Js

This dynamic viewport system is developed to provide you an extraordinary viewing experience for your responsive Web design.

42. Screenfly

You can use this tool if you want to view your website in a variety of devices like desktop, tablet, mobile and TV. Options to enable and disable scrolling and to rotate the display are included.

43. Screenqueri.Es

It is a pixel perfect design testing tool to help you check your website in different screen sizes according to devices. In order to identify the breakpoints, you can manually resize the size pixel-by-pixel.

44. The Responsinator

This tool lets you check your website in a variety of different devices such as iPhone, iPad, Kindle and on Android. Site shown here in both portrait and landscape mode.

Sliders

45. Blueberry

Blueberry is an extraordinary jQuery image slider which is also an open source and it is written to particularly work for fluid or responsive layouts.

46. Elastislide

With this slider, you can have the most suitable solution for adjusting screen size when the browser window is resized or when you are in a smaller screen.

47. Responsive CSS3 Slider

This slider is designed to adapt to any screen size and screen resolution with ease. The arrows go inside the box when the device screen size is small enough.