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arnabroychowdhury for LambdaTest

Posted on • Updated on • Originally published at lambdatest.com

Debugging Local Mobile Pages on Android Phone Using Chrome Developer Tools

While developing a mobile web application, device or browser issue are very common. iOS sumiltaor and android emulator plugins or built in emulators in browsers can be used to deal with them, but often bugs are faced by developers that occur in actual devices, not in emulators. The best way to deal with them is to debug the application directly in the device. Remote debugging is a feature that allows you to debug the application in your mobile the same way as done in desktop. Let’s take a deep dive towards how to execute the process.

Also, check out about HEX to RGB converter online- It is a free online tool to convert your HEX color values to RGB color values. The red color level can be obtained by converting the leftmost two digits of the hexadecimal color code to decimal value. The green color level can be obtained by converting the middle two digits of the hexadecimal color code to decimal value.

What Will You Need

The requirements are very simple and the system can be configured easily without purchasing any extra software or hardware. For your PC you will need

  • Chrome version 32 or above installed and properly working.

  • If you are using Windows, USB drivers are required.

  • A USB cable to connect your Android device with the desktop or laptop.

For the Android device, the following things are required.

  • Latest version of Google Chrome.

  • Android version 4 or above.

  • USB debugging enabled in the developer options for Android.

The last requirement is a bit tricky. We will cover it in the following section.

How to Enable USB Debugging in Android

If you are using Android 4.0 and 4.1,

  • Go to Settings

  • Navigate to Developer Options and enable it

  • Once Developer Option is enabled, you will be able to see the USB Debugging checkbox.

  • Scroll to the checkbox and check it

  • A pop-up notification will appear informing that you are now a developer.

The process is a bit complicated in Kitkat or other higher versions.

  • Navigate to settings and go to About Phone option

  • A new window will open. Scroll to the bottom and you will be able to see the Build Number.

  • Tap it 7 times. In the lower section of the page you will get a pop-up that you are now a developer.

  • After going back, you will be able to access the Developer Options menu.

  • The rest is same, check USB debugging, and you are done.

Check out RGB to HEX converter online- It is a free online tool to convert your RGB color values to HEX color values. There are 3 different input values for Red, Green and Blue which range from 0 to 255. These are then used to convert those values into a hexadecimal string which can be used to specify colors in html/css code.

Setup Localhost on your Desktop

If your website is in Angular or any other framework, hosting it locally will not a problem. Recent versions of Angular use NPM for code building and once executed, it automatically configures a proxy server and hosts the application on your local machine which can be browsed via http://localhost:8080.

If you are developing a normal website without any advanced JS framework, you will need to create a proxy server on your workstation. This can be done by using WAMPServer, which comes with the latest versions of PHP, Apache and MySQL. Once installed, WampServer will create a directory under which, project folders can be created. The sites can be directly previewed at localhost once development is completed.

Connect Both Devices

Make sure that the Android device, as well as your workstation, are connected to the same Wi-Fi network. Even if you don’t have a Wi-Fi network, you can use USB tethering to connect both the devices.

Find Your Workstation Details

You can view your locally hosted website on your Android Emulator using either your computer’s IP address or hostname. To find your IP address

  • Go to the control panel

  • Search for β€œadapter” and click on it

  • Go to β€œview network connections”

  • Select Active Network and navigate to β€œview status”

  • Click on β€œdetails” and you will be able to view the IP Address next to IPv4 address.

There is also an easier alternative

  • Click the β€œStart” button and go to run

  • Type β€œcmd” and press enter

  • The command prompt screen will appear. Type ipconfig and press enter

  • You will get your IP address prompted on the black screen along with default gateway and subnet mask.

There is however, one drawback of using IP address. Every time you change the network, it gets changed and you have to search for it again. A better alternative is to use the Hostname. It can be found easily by

  • Clicking on β€œStartβ€œ button

  • Right click on β€œMy Computer” and go to properties

  • In the Computer Name tab, you will find the Hostname for your workstation

Look onto URL decode- Url Decoder decodes web addresses from ASCII to human-readable format. URL Decode tool converts special HTML characters into a standard URL that can be used for links on a page. This is helpful when you have built a website with HTML and want to share an address without having to reveal the special characters in your web address.

Viewing Locally Hosted Websites in Android

The final step is easy. Open Google Chrome on your mobile and type the IP Address or the hostname on the address bar of the browser. You will be able to view the content of the localhost on your mobile browser. Navigate to the site which you hosted on your workstation and you will be able to view the contents and test it on a mobile device.

Testing Locally Hosted Pages on LambdaTest

While doing the above process is not very difficult, it is still a little cumbersome and is prone to errors. A easier way is to test on LambdaTest cross browser compatibility testing platform. At LambdaTest you get instant on-demand access to android mobile browsers where you can run and debug your pages. In addition these browsers comes with integrated chrome developer tools that can be launched by a click of a button. You can connect you system with LambdaTest cloud platform via simple SSH protocol based tunnel application and test your locally or privately hosted webpages on LambdaTest app.

LambdaTest is free to signup and use. So do tryout LambdaTest first before you try above method :P.

Viewing a locally hosted website in Android device is very beneficial in the current age of digital transformation. People are using mobile devices for browsing and surfing webpages. Often developers and testers test mobile view of website using browser emulators. The results of which are often inaccurate. Real time issues on Android devices are not observed often on emulators. For perfect User Experience testing, it is always helpful to test your application on an Android device before it is deployed into production.

You can also subscribe to the LambdaTest YouTube Channel and stay updated with the latest tutorials around Playwright, Selenium testing, Cypress testing, CI/CD, and more.

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