Comparium is Closing on September 1

We want to thank you for using Comparium. After much consideration, we've made the difficult decision to discontinue the service on September 1, 2025. All active subscriptions will be automatically refunded in full - no action needed. Thank you for being part of our journey. If you have questions, reach us at support@comparium.app

The Comparium Team

Website browsers test tool to improve
your website performance

Test browser compatibility and deliver a seamless user experience of your web resource with a powerful assistant.
Run web browsers tests in a few simple clicks and get access to a wide range of browsers, browser versions, and platforms.

Free Account No Credit Card Full Capabilities

Check website compatibility
in different browsers

Comparium is a convenient website compatibility test platform with support for all modern popular operating systems and browsers. Choose between four screenshots comparison modes or get the most out of automatic error detection mode. Ensure your web resource looks as intended regardless of platform and device.

SCREENSHOT TOOL

Test using full page screenshots

Capture full-page screenshots across different OS, browsers, and resolutions simultaneously and find inconsistencies in minutes with our browser screenshots testing tool. Perform flawless website browser compatibility testing to verify UI responsiveness.

LIVE TESTING TOOL

Check performance with live testing tool

The live browser testing tool allows you to run real-time sessions and check the functional behavior across any OS/browser configuration for optimized usability. Run web browsers tests manually and make sure your website works smoothly in any environment.

What you should know to run a browser compatibility test

Here you can find useful info about additional tools and methods that will help you check website compatibility and test the visual part of your web resource.

Test on virtual browsers

Test website compatibility in a virtual environment with the virtual browser. Launch real browsers and use them as if they are installed on your computer.

Responsiveness testing

A responsive web tester is designed to test site responsiveness on different screens. Make sure your site is equally good on any platform, any browser before going live.

Taking full page screenshots

The full page screen capture tool allows taking and comparing screenshots of the entire page across different browsers and operating systems.

Visual testing

The built-in screen size simulator lets you detect any inconsistencies and make the appropriate changes to your web pages.

Website resolution testing

Carry out screen resolution test to check web pages on every possible resolution and device type and optimize them for the commonly used screen sizes.

Browser emulator

A powerful service with a wide range of different browser/OS combinations available that allows executing website browser compatibility tests. Using a browser emulator simplifies the testing routine and enables launching real-time tests, checking the behavior and functionality of the website in the browser of your choice, without having to install it on your device.

Chrome
emulator

Firefox
emulator

Opera
emulator

Microsoft Edge
emulator

How does it work

Graphical display and functionality of sites or apps may not be the same, since most work differently on different browsers and operating systems. With the Comparium website compatibility checker, you have the ability to test your web page’s cross-browser compatibility in a matter of minutes. Just submit a web page URL and get the results for checking.

NEW FEATURE

Support for Smartscroll

Get rid of the unnecessary floating elements that cover webpages and prevent you from having full analysis of the page. With the Smartscroll feature, you can control the screenshot by enabling or disabling fixed and sticky elements such as pop-up ads, GBDR pop-ups etc. Analyze all elements of the page without difficulty.

Frequently Asked Questions

We have gathered some commonly asked questions below to give you a better idea about the Electronic Test.

What browsers should I test my website in?

Checking websites in different browsers is crucial while developing any web app or site. The web resource should work equally well on the latest versions of the most popular desktop browsers, namely Chrome, Firefox, IE/Edge, Safari.

How do I test browser compatibility?

Cross browser testing is the answer to “how does my site look in different browsers”. The easiest and most convenient way to test cross browser compatibility is by using online testing tools like Comparium. With this website browser compatibility tester, you can easily check the performance and visual part of your product across various browser/OS combinations.

How do I fix browser compatibility issues?

There are a set of rules to follow that helps to avoid cross-browser compatibility issues: validating HTML/CSS code, checking for Doctype, keeping code simple, and using libraries and frameworks. And do not forget about testing and following the browser compatibility testing checklist to identify issues before going live.

What is cross-browser testing and parallel testing?

Cross browser testing is the process of testing a web resource on browsers like Chrome, Safari, Firefox one by one. It can be performed either manually or with the help of the best cross browser testing tools like Comparium. Parallel testing allows you to test a site in multiple browsers simultaneously to identify differences.

Reviews by popular media

"Comparium app is a superb platform and a must-have for any business if it revolves around a website. This is a great tool to test if your site is functioning flawlessly on various combinations of operating systems and browsers."

Howard Steele from superbwebsitebuilders.com

"Comparium is the web application performs the cross-browser website testing with ease. The application offers many platforms to check the site and make it smooth to run in a variety of browsers."

Emily Forbes from thetechnews.com

"Though it is not possible to get the complete alignment of all parameters across different browsers and OS, with the help of cross-browser testing, you can ensure that the entire content is accessible to the users and that they can perform all basic functions on the app or website without any glitch."

Harshil Barot from justwebworld.com

"Comparium is a must-have tool for all the website developers as they need to test their websites on multiple platforms. It offers you a nice set of features using which you can test the compatibility and functionality of your website on any platform or web browser."

Chris Almeida from sguru.org

Comparium

We make complicated testing simple

4.5 Rank based on 250 + users

Information

Requirements:

Requirements: Chrome, Mozila Firefox, Opera, Safari, Edge, IE-11

History:

History: Records of all notable Comparium's changes you can find in changelog

Strategy:

Strategy: Results and goals you can see in roadmap

Website browsers test tool to improve
your website performance

Check website compatibility
in different browsers