LT Browser: Test Website For Responsiveness Easily

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LT Browser allows you to ensure your website’s responsiveness over a variety of major devices and view ports. You can open a website in the LT Browser and perform live testing across 25+ devices.

To get started, you need to download the executable file from here.

Download LT Browser For Windows

Download LT Browser For macOS

Download LT Browser For Linux

Note: After you are done with the installation, you will need to login to the LT Browser through your LambdaTest login credentials.

Running Your First Responsive Test With LT Browser

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Step 1: Open the LT Browser. Provide the testing URL in the address bar and hit Enter.

Step 2: Once you hit Enter, the website would be loaded over 27 devices. You can select any device to start responsive testing from the sidebar on the left. You can also monitor two different devices side by side by adding a device on the view screen.

Step 3: After you click on the + button to add a new device, you will be prompted with a screen from which you can select the specific device you want to test side by side. Select the device and hit the button to add device.

Step 4: You will now find the added device on the view area inside LT Browser. That way you can compare responsive web design on 2 different device through a side by side view.

Rotating Device From Portrait To Landscape View Or Vice Versa

You can rotate any or both devices by clicking on the hightlighted button with the rotate icon.

Couldn’t Find Your Favourite Device? Add A Custom Device

Although, we try our best to deliver the most majorly used devices to our user as per the global market share. However, in case you are unable to find a device that matches the view port or device pixel ratio of your requirement then you can even add a custom device to your LT Browser. To do so, you need to click on the tab which says add a custom device.

You will now be routed to the below screen where you can specify device details. You can specify:

• Device Name
• View Port Specifications
• Device Pixel Ratio
• User Agent String
• Device Platform

Let’s try adding OnePlus 5 to the LT Browser. We will provide the mandatory details to add OnePlus 5 as a custom device.

As you click on add a device, you will find the custom device One Plus 5 added to your view area on the LT Browser. You will also find it added over the top of sidebar on the left with a bin icon to delete the custom device, if needed.

How To Search For A Specific Device In The LT Browser?

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If you open the LT Browser, you will notice a search bar displayed over the top-left. You can leverage the search bar to quickly find your favourite devices. After you search a string, you can select the particular device & the selected device will be rendered over the browser instantly.

How To Capture A Screenshot & Highlight The Bugs?

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Step 1: Click on the camera icon to capture screenshot of your website inside a mobile device screen of your choice.

Step 2: Once you click on the camera icon, a built-in image editor would open up to present the captured screenshot of the selected device’s screen.

How To Edit Captured Screenshot? Use Built-In Image Editor

LambdaTest offers a built-in image editor to help you easily mark the bugs over your website and share it across your teammates. You can highlight the bugs in various shapes with different colors. Let us have a look at everything that you can do with the image editor.

Draw A Line

Highlight Bug With A Circle

Draw A Rectangle

Highlight The Bug From Multiple Colors

Add Text In The Captured Screenshot

Freestyle Highlighting With Marker

Removing Your Edits With Eraser

Undo Your Edits

How To Share The Highlighted Bugs With The Team?

We understand that one of the most strenous task for any tester is to collect & share the bugs across your teams. Keeping that in mind, we offer multiple ways for you to share the highlighted screenshot with others through LT Browser.

1. Download The Screenshot In Your System

You can download the highlighted screenshot in your system and share it with your team as you like through emails, instant messaging or more.

2. Saving The Screenshot Over LT Browser

After capturing the screenshot, you can save the screenshot over the LT Browser by clicking the Save button.

This will save your screenshot inside the Media over your LT Browser. You can find these saved screenshots by clicking Media in the header of the LT browser.

3. Sharing The Screenshot To Multiple Email IDs

Step 1: After highlighting the screenshot, click on the share icon.

Step 2: You will be prompted with the below screen where you can enter the note or description around your observation of the screenshot. You can also feed multiple Email IDs and as you hit the Send button an email is sent to the specified Email IDs from the LT Browser. This E-mail would contain your highlighted screenshot as well.

4. Get Shareable Link

You may have noticed the option to get shareable link after you hit the share icon.

If you click on it, you will generate a shareable link to access the highlighted image. You can copy the generated link and share it with your teammates.

5. Mark As Bug Directly To Third-Party Tools

LambdaTest offers numerous integrations to third-party tools for project management, bug tracking, instant messaging, CI/CD and more. Once you integrate your LambdaTest account with your desired third-party integration. You can leverage the mark as bug button to push the bugs directly to your projects over third-party platforms. Meaning, you can share your highlighted screenshots across Jira, asana, Trello, slack and more.

As you click on the mark as bug button, you will be presented with the screen which will present you few of LambdaTest integrations. If your favourite integration isn’t presented then you can click on more integrations to view all of the LambdaTest integrations.

Once you integrate the LT Browser with your favourite third-party integrations then you can log bugs directly from the LT Browser to your project over a third-party tool such as Gitlab, GitHub, and more.

How To Record Video Of A Test Session?

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Step 1: Open you website in any device and click on the video recording button, you will be able to record your interaction of the website within the device.

Step 2: Perform live-interaction with your website. You will find a timer on top of the device. This timer indicates the length of the video recording of your live testing session. The timer will continue to run unless you stop the recording by clicking over the same video recording button.

Step 3: After you stop the recording, you will find a message on top of the LT Browser indicating that your video of the test session has been successfully saved.

Now, to access this video you will need to go to Media.

What Is Media?

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To access any of your captured screenshots or recorded video, visit the Media. Consider Media as a Gallery which will comprise all your images and video that you may capture while testing your website through the LT Browser.

In Media, you’ll find tabs for Images & Videos. You can download, share, and delete any image or video from the Media tab. And similar to in-built image editor, you can mark a bug from an image stored in Media as well.

If you switch to Video tab, you will find full recordings of your live interaction from different test sessions.

How To Test Locally Hosted Web-Apps or Websites?

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All you need to do for testing your locally hosted web-apps or websites, is to provide the localhost string as the URL in the header of your LT browser and you’ll be able to access your localhost server.

For example, if you are running localhost with Apache through XAMPP and have your website in XAMPP’s htdocs folder.

All you have to do is open the localhost and append the URL with the webpage or website-folder you want to test.

It is as simple as that!

Can I Test My Web Pages Behind Login?

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Yes, you can! LT Browser aims at providing responsive testing along with live-interactive testing experience. You can simply load a website, login to the web-application and start testing your web pages that come after login.

Here is a screenshot of the LambdaTest web-application which is captured after logging in from the LambdaTest website.

How To Debug My Website In LT Browser?

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With LT Browser, not only can you evaluate how your responsive web design might look over 25+ devices but you can also debug your web-application to figure out the root cause behind a browser or UI bug.

To debug your website, click on the highlighted button with the debug icon.

As you click on the debug icon, you will be able to access the developer tools.

Ta da! You can now perform responsive testing and debug any issues on the go. Cheers!

Keyboard Shortcuts

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You can’t really work with a browser which doesn’t have any keyboard shortcuts, right? Well, don’t worry! LT Browser has got your back on that! Here are the keyboard shortcuts for LT browser.

For macOS

Keyboard Shortcut	What Does It Do?
Command+Z	Undo
Shift+Command+Z	Redo
Command+X	Cut
Command+C	Copy
Command+V	Paste
Command+A	Select All
Ctrl+Command+F	Toggle Full Screen
Command+M	Minimize
Command+Q	Quit
Command+T	Opens a new tab.
Command+W	Close the active tab.
Command+M	Navigate to Media page.
Command+D	Navigate to Home page

For Windows & Linux Operating Systems

Keyboard Shortcut	What Does It Do?
Ctrl+R	Reload
F11	Toggle Full Screen
Alt+F4	Close
Ctrl+X	Cut
Ctrl+C	Copy
Ctrl+V	Paste
Ctrl+T	Opens a new tab.
Ctrl+W	Close the active tab.
Ctrl+M	Navigate to Media page.
Ctrl+D	Navigate to Home page
Ctrl+A	Select All

That is all about the LT browser. Don’t forget to share you experience or questions with us. You can drop us an email through support@lambdatest.com or you could wave us a hello over our 24/7 customer chat support. Happy testing! 🙂