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Discover thousands of free code tutorials to help you learn web and mobile development. You can learn Android app development, master React Native, become a better WordPress developer, and much more.

All Code Content:

  1. Generate Random Numbers and Strings in JavaScript

    Generate Random Numbers and Strings in JavaScript

    Tutorial Beginner

    This tutorial will teach you how to generate random numbers and alphanumeric strings in JavaScript in a cryptographically secure manner.

  2. Read and Create Cookies in JavaScript

    Read and Create Cookies in JavaScript

    Tutorial Beginner

    Cookies are basically small pieces of text that contain some information relevant to you or the website you are visiting. This tutorial will show you how to...

  3. Canny Edge Detector Using Python

    Canny Edge Detector Using Python

    Tutorial Beginner

    This tutorial shows how we can implement the Canny edge detector using Python, through the scikit-image and OpenCV libraries.

  4. How to Build a REST API With Laravel

    How to Build a REST API With Laravel

    Tutorial Beginner

    There are a lot of moving pieces to coding a RESTful API, but Laravel makes it a lot easier. In this free course, you'll learn everything you need to know to...

  5. 8 Best PHP CRUD Generators and Frameworks on CodeCanyon

    8 Best PHP CRUD Generators and Frameworks on CodeCanyon

    Tutorial Beginner

    Database code is repetitive, but very important to get right. That's where PHP CRUD generators and frameworks come in—they save you time by automatically...

  6. Best Ways to Preload Images Using JavaScript, CSS, and HTML

    Best Ways to Preload Images Using JavaScript, CSS, and HTML

    Tutorial Beginner

    This tutorial will show you three different methods of preloading images. We will also learn the pros and cons of these methods.

  7. 19 Best HTML5 and JavaScript Game Engines and Templates

    19 Best HTML5 and JavaScript Game Engines and Templates

    Tutorial Beginner

    Do you want to code an online game? You're in luck—this is a great time for any online game developer and those aspiring to be online game developers. HTML5...

  8. Android SDK: Virtual & Physical Devices

    Android SDK: Virtual & Physical Devices

    Tutorial Intermediate

    In this tutorial, we are going to explore how to run and interact with your apps on physical and virtual devices. We'll look at getting an app running on a...

  9. Modern Web Scraping With Beautiful Soup and Selenium

    Modern Web Scraping With Beautiful Soup and Selenium

    Tutorial Intermediate

    In this tutorial, you'll learn how the content you see in the browser actually gets rendered and how to go about scraping it when necessary. In particular...

  10. Android SDK: Working With Android Studio

    Android SDK: Working With Android Studio

    Tutorial Beginner

    This tutorial will help you become more comfortable when working with Android Studio and its different menu options and tool windows.

  11. How to Get and Set Featured Image Sizes in Your WordPress Theme

    How to Get and Set Featured Image Sizes in Your WordPress Theme

    Tutorial Beginner

    This tutorial will teach you how to get and set the size of featured images in your WordPress theme.

  12. Intro to Flask: Adding a Contact Page

    Intro to Flask: Adding a Contact Page

    Tutorial Beginner

    In the previous article in this mini-series, we used Flask to build a simple website. In this lesson, I'll demonstrate how to add a Contact page that allows...