New Android App Tester is live

Learn to Code.
Build Anything.

Beginner-friendly, example-driven tutorials in HTML, CSS, JavaScript, PHP, Java, Python & Android. Plus 175+ free developer tools, and a tester that checks your Android app from the browser.

Start with HTML Android App Tester
  • Free forever
  • No sign-up for tutorials
  • Runnable examples
Android App Tester 175+ free tools Examples you can run
1,100+Free lessons
35+Tutorial series
175+Free developer tools Tester NewAndroid App Tester
Tutorials

Pick a Path, Start Learning

Every tutorial is broken into short, practical lessons with runnable examples. No fluff, just what you need to get building.

HTML

HTML

48 lessons

Structure every webpage the right way, from tags to semantics.

Start Learning
CSS

CSS

41 lessons

Style, layout, and animate with Flexbox, Grid, and modern CSS.

Start Learning
JavaScript

JavaScript

20 lessons

Bring pages to life with logic, events, and interactivity.

Start Learning

jQuery

29 lessons

Simplify DOM handling, effects, and AJAX with jQuery & jQuery UI.

Start Learning
PHP

PHP

34 lessons

Build real backends: forms, sessions, MySQL, and security.

Start Learning
Java

Java

33 lessons

Learn core OOP concepts with a language used everywhere.

Start Learning
Python

Python

24 lessons

The friendliest language to start coding and scripting fast.

Start Learning

Android

97 lessons

Build real Android apps with Java, layouts, and activities.

Start Learning

More to explore

Android Kotlin Jetpack Compose Flutter React Native Cordova Bootstrap 5 Laravel Django Flask MySQL SQLite DSA in Java DSA in Python Selenium Postman Manual Testing ESP32 Raspberry Pi
New product

Test your Android app from the browser

Show your phone's screen in the browser, click through your app once, and replay the same test on every new build. No code to write.

  • See and control your phoneYour phone's live screen in the browser, over a USB cable or Wi-Fi.
  • Record once, replay on every buildClick through the app, save the steps, and run them again whenever you like.
  • Crashes and the live app logCatch a crash the moment it happens, with the log next to it.
  • Screenshots to a PDF documentTurn your screenshots into an app flow or a test report with a cover page, in one click.
Open the Android App Tester See all products

No phone at hand? Start with the built-in demo phone.

codingwithsonu.com/products/android-app-tester.php
The Android App Tester: tools and search on top, the phone screen below
JavaKotlinFlutterReact NativeCordova

Screenshots and video

Capture the screen, mark it, record a video, and download it all.

Speed, battery and data

See memory, battery, data use and storage of the phone and of your app.

Phone controls

Wi-Fi, Bluetooth, hotspot, location, volume and more, from one page.

Find a tool fast

Tabs, a search box and your own list of favourite tools.

Free tools

175+ Tools, Right in Your Browser

Nothing to install and nothing to pay. Pick a tool, use it, and get on with your work.

Developer tools

Format, test and convert

Android tools

For app developers

Document makers

Ready to print or share

Images and PDF

Compress, convert, edit

Calculators

Money, health and dates

Web and network

Check a site or an address
Browse All Tools
Why Coding With Sonu

Built to Actually Help You Learn

No paywalls, no clutter. Just clear explanations and code you can run right away.

Free Forever

Every tutorial and tool is free, with no sign-up and no hidden paywalls.

Real, Runnable Examples

Every concept comes with working code you can copy and try instantly.

175+ Handy Tools

QR codes, JSON formatting, PDF and image tools, document makers and more.

Beginner Friendly

Lessons are written step-by-step, assuming zero prior experience.

Ready to start your coding journey?

Jump into HTML, the very first step for every web developer. Building an Android app? Test it with the Android App Tester.

Get Started Free Try the Android App Tester

Codingwithsonu

Coding With Sonu is a free learning platform built to help students and developers master programming — from HTML, CSS, and JavaScript fundamentals to PHP, Java, Python, Android, and cross-platform app development. I'm committed to providing clear, practical, in-depth tutorials for learners at every stage.
-Sonu Kumar Pandit

Quick Links

Contact Details

Address: Ghaziabad,Uttar Pradesh

Email: codingwithsonu@gmail.com

Follow on Facebook

Subscribe our channel

© copyright 2020 www.codingwithsonu.com. All rights reserved. Developed by Sonu Kumar Pandit