If you are a webmaster or own a blog or a website, you might have tried testing it different screen sizes or resolutions. If not, then I must say that it is generally a good idea to see how your website looks in different screen resolutions, especially if you are using a responsive design, so that you can be sure that it is looking good under different resolutions.
Most of the leading websites today are now using the responsive web design which works great for desktops, tablets and mobile screens. When we say screen resolution, it refers to the clarity of images and text displayed on your screen. If the resolution of your machine is higher like 1600 x 1200 pixels, the images and text fit well on the screen and appear sharper. Similarly, on the devices with lower screen resolution like 800 x 600 pixels fewer items of the website fit on the screen and they appear larger.
Test website in different screen sizes & resolutions
If you are wondering how to test website in different screen sizes and resolutions, let me tell you that there are different tools available for the same. I have tried including the most commonly used tools in this piece of writing.
Quirktools.com/screenfly
It is one of the most commonly used resolution testers online as – it supports many screen resolutions including TV, tablets, mobile phones, Notebooks and desktops with different resolutions. You can also check your website for any custom screen size with Screenfly. It also has a ‘Share’ option to share the resolution test results. 
To use it, you just have to add your website’s URL and click on the button ‘Go’. The tool will show the results within a fraction of a second for:
- Desktop with different resolutions
- Smartphones (Motorola RAZR V3m, Motorola RAZR V8, BlackBerry 8300, Apple iPhone 3 & 4, LG Optimus S, Samsung Galaxy SII, Asus Galaxy 7, Apple iPhone 5, Samsung Galaxy SIII)
- Tablets (Kindle Fire, Kindle Fire HD 7”, Kindle Fire HD 8.9”, Google Nexus 7, Apple iPad 1-3/Mini)
- Television sets with different resolutions.
TestSize
TestSize is a simple web app allowing you to view your website in various resolutions. You can select the resolutions manually from the drop down and check your website appearance. You can also check your website at a custom screen size by adding the width and height on your own.
You just have to enter the URL of your website on the column above, select the resolution from the drop down menu, choose width and height and then click on ‘Open Pop Up’. The tool will show the results in the same window as well as in a new pop up. 
Screen-Resolution.com
Screen-Resolution is another very good tool to test the website in different resolutions. It is a quick and simple tool to check the website resolution. Unlike the other two online resolution testing tools mentioned above, Screen-Resolution has the resolution options in the bottom. You can manually select the resolution; you want to test your website for. Screen-Resolution works best in the Internet Explorer browser, where it displays the results in the same window. For other browsers like Google Chrome and Firefox, it displays the result in a new pop up Window.
It is a very simple tool to test website in different screen sizes and resolutions, using this website. Open the tool in Internet Explorer, add your URL and click on ‘Check Page’. The result will be displayed in the same window.
Testing your website under various resolutions is always beneficial as it helps you to make sure that your website’s design is functioning well in varied screen sizes and device.
