What are the best Chrome extensions for screenshot testing?

I need some suggesions regarding the best chrome extensions for screenshot testing, can anyone please suggest me some.

Chrome extensions are tiny widgets that hide in your local browser and help you accomplish your testing objectives. Extensions that take away tedious work are a real lifesaver for software testers. They help testers to increase their efficiency and make life easy.

But with so many extensions, it is very difficult to find the good extensions amongst the bad.

Following is the list of best Chrome extensions which are helpful in Screenshot and cross browser testing of a website or web app.

Page Ruler

The Page Ruler Chrome extension allows you to draw out a ruler to webpage and displays the width, height, and position of it while performing web UI testing. You can manually update the size and position of the ruler from the toolbar to make precision changes. This extension ensures your web application will be pixel-perfect.


Have you ever wondered what is the font used in your web page? With the WhatFont extension, you can find out web font types by just hovering over them. It is that simple and elegant.

It also tells us about the web font service provider. It supports Typekit and Google Font API.

LambdaTest Screenshots

The LambdaTest Screenshots Chrome Extension can be used to take full-page screenshots of web pages across different desktop and mobile browsers right from your browser with one click. These screenshots will help in fast-tracking cross-browser compatibility testing of web pages.


If you want to test your web pages pixel by pixel as per design specifications, the PerfectPixelbrowser extension is perfect for you. PerfectPixel allows testers to put a semi-transparent design image over the top of the developed webpage and perform pixel perfect comparison between them.


The Postman extension is a go-to tool for fulfilling API testing needs, particularly RESTful APIs. Postman is packed with many useful features and options, like

  • Unlimited collections, environments, tests, and sharing
  • Automated testing with collection runner
  • Web-viewable, detailed API documentation
  • Flexible API monitoring

Web Developer

The Web Developer Chrome extension adds a button to the browser with various web developer tools. With this extension, you can control the browser cache and manage cookies, inspect and highlight web elements, and more on any web page. It saves a lot of time while performing web UI testing.

Firebug Lite

Firebug Lite is not a substitute for Chrome Developer Tools. This works great with Chrome Developer Tools. With Firebug Lite, you can inspect HTML and CSS elements with just one click of a button. This helps a great deal while automating your web application.

Edit This Cookie

Using Edit This Cookie, you can set values or add, delete, search, protect, or block and manipulate cookies to check how your website is reacting. This will help you when you want to perform A/B testing for any website or want to test your web pages for a defined segment of users.

Clear Cache

Do you want to clear the browser data in the middle of your testing process? You don’t need to follow a long and mundane process to clear browser history. With Clear Cache, you can clear the browser cache with a toolbar and customize passwords, app cache, file systems, browsing history, local storage, downloads, and form data.

Resolution Test

Resolution display testing is ab important segment of web UI testing. Resolution Test provides you a full range of the most-used resolutions to test your website. Resolution test resizes the browser window according to the selected resolution and launches your website in the desired screen size.

Bug Magnet

Bug Magnet is an exploratory testing assistant for the Google Chrome browser. With a right click, you will get a context menu which contains all the test values for different fields. The context menu also contains predefined values for names, phone numbers, emails, and postcodes.

Chrome extensions act as an assistant for software testers and help reduce testing time and give an opportunity to explore software more.

Original Source: Top Chrome Extensions for Software Testers