Test on Online Browsers with LambdaTest

Test your websites on all major desktop and mobile web browsers on Our Cloud platform. 3000+ combinations of OS, Browsers, Devices, and Resolutions.

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Test Across 3000+ Web Browsers

Test your website on real devices —like your phone, tablet, and computer—in real time. Select from 3000+ environments to easily test on the desktop or mobile web browsers.

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Test Across 3000+ Web Browsers

Test On Real Mobile & Desktop Web Browsers

Choose from a wide range of Windows PC, mac minis, iPhones, and Android smartphones with recent and legacy browsers. Access all these devices from anywhere in the world.

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Test On Real Mobile & Desktop Web Browsers

Live Responsive Testing Online

With LT Browser, you can perform responsive testing of your website across 50+ viewports. You can create infinite custom viewports and build test and debug a responsive website with this FREE to use tool.

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Live Responsive Testing Online

Top 3 Features To Accelerate Web Browser Testing

Plugins & Extensions

Plugins & Extensions

Capture full-page screenshots and do cross-browser testing with the LambdaTest WordPress plugin and Chrome extension.

Geolocation testing

Geolocation testing

To make sure your users get the best experience possible, test your mobile app or website from different geographic locations.

Test Locally hosted pages

Test Locally hosted pages

Localhost web testing allows you to test your dev builds to work out bugs in your website before production launch.

Automated Screenshots on Online Web Browsers

With LambdaTest automated screenshots tool on cloud, you can perform Web Browser testing across 3000+ web browsers online. Choose required configurations and time interval and you are all set for automated periodic tests.

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Automated Screenshots on Online Web Browsers

AI-Agentic Quality Engineering

Test AI agents such as chatbots and voice assistants to ensure efficiency, relevancy, and performance.More about Agent-to-Agent TestingArrowArrow

Agent-to-Agent Testing

Experience the Power of Unified Testing Cloud

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Seamless Collaboration via Integration

Connect to dozens of applications to test directly with LambdaTest. Explore all IntegrationsArrowArrow

Customer Success Stories

World's leading companies trust LambdaTest with their digital transformation journey. All Customer StoriesArrowArrow

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More Reasons to Love LambdaTest

Documentation

Step-by-step documentation for various test automation frameworks to help you run your first Selenium script.

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Enterprise-Grade Security, Privacy, AI Governance & ESG

We protect your data and AI systems with global security, privacy, responsible AI, and ESG standards, backed by certifications, ESG attestation, and continuous monitoring, guided by Responsible AI Principles.

Enterprise and Grade Security

Wall of Fame

LambdaTest is #1 choice for SMBs and Enterprises across the globe.

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Industry Recognition

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24/7 support

Got questions? Throw them to our 24/7 in-app customer chat support or email us on support@lambdatest.com.

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Trusted by over 2,000,000 teams

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    Frequently Asked Questions

    What is an online web browser?
    An online web browser is the same as the browser you use on a computer or mobile device, but it’s hosted on the Cloud. This means that you can access your favorite browser from your preferred computers and devices without having to buy, download, install, or manage anything. You can get an online web browser hosted anywhere in the world while you sit at home. For example, a user in the United Kingdom can access a Firefox 95 on MacOS Big Sur with a 2560X1440 screen resolution hosted on servers located in the United States.
    Why a QA needs an online web browser?
    QA testers can use online browser testing environments to test their websites or web applications on multiple browsers, operating systems, and locations without setting up anything on their local systems.
    What are the benefits of web browser online?
    Web testers using online browsers can use them wherever and whenever they need to, without needing to purchase, install or maintain anything.
    How to get free access of web browser online?
    With LambdaTest, you can test your applications on 3000+ desktop and mobile environments. Sign up for a free trial on LambdaTest.
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