Suggest me some responsive web design testing tool?

You can try the following tools:

https://www.google.com/webmasters/tools/mobile-friendly/
https://testmysite.thinkwithgoogle.com/
http://opendevicelab.com/

Thanks

Following is the list of top online tools for testing a website responsive design feature.

Respondr
websiteresponsivetest
Screenfly
The Responsive Web Design Bookmarklet
ViewPort Resizer
ResponsivePX
Froont
Retina Images


Visit https://www.mdhov.com/ to learn more about responsive website designing and development.

Responsive Website Designing Services enhance your visitors' experience great irrespective of their device. You will probably spend a lot of time on it when your site visitors find your site scales and react to scale changes well and they are able to reach all the menus and buttons. if you are interested to design responsive web designing then click here
https://www.weblinkindia.net/responsive-website-designing.htm

Here are a few web design testing tools:
1. Google Resizer.
2. Am I Responsive.
3. X Respond.
4. Screenfly.
5. CrossBrowser Testing: it is the best all-in-one browser testing platform.

Fiddler, Shadow DOM, Chrome extensions (such as DevTools and Lightbeam), and offline tools are the most commonly used tools. These tools can help you to get a better understanding of how your website behaves in different environments. Nowadays, there are a lot of browser extensions and plugins available which can help you to test your website. Here are some of the most common browser extensions: * Google Lighthouse * Web Page Test * YSlow * Page Speed Insights * PageSpeed Insights * Pingdom

for more visit our site
https://originsoftwares.com/Website-Design.html
and have a brief information