Code Tutorials

Thousands of free tutorials and online courses to help you learn software development from mobile devices to web applications and everything in between. Join our community to improve your coding skills and workflow. What would you like to learn?

10 Best Multi-Purpose Android App Templates
These multi-purpose Android app templates let developers create many kinds of app easily and quickly. That way, you can use the same universal, all-in-one...
Nona Blackman
19 Sep 2018
Mobile Development
New eBooks Available for Subscribers
Do you want to learn more about big data analytics? How about creating microservices with Kotlin, or learning Node.js development? Our latest batch of eBooks...
Andrew Blackman
19 Sep 2018
eBooks
Hands-on With ARIA: Homepage Elements and Standard Navigation
Learn to add ARIA to the homepage's of your projects in this tutorial. We'll talk about adding accessibility features to your content, navigation, sidebars,...
Kyle Speaker
18 Sep 2018
Accessibility
20 Best WordPress Calendar Plugins and Widgets
Whether you need an event calendar plugin, a booking system with payments, or a Google calendar widget, this list of plugins will have something to improve...
Eric Dye
18 Sep 2018
WordPress
Testing Android User Interfaces With Espresso
Learn about how to write UI tests with the Espresso testing framework and automate your test workflow, instead of using the tedious and highly error-prone...
Chike Mgbemena
17 Sep 2018
Android SDK
Resize and Manipulate Images in PHP (With Examples)
This tutorial will teach you how to transform an image using the convolution matrix and how to use different image copying and resize functions in GD to add...
Monty Shokeen
13 Sep 2018
PHP
20 Best jQuery Image Sliders
Take a look at these 20 useful jQuery sliders from Envato Market and you'll see how they can bring a static page to life.
Eric Dye
13 Sep 2018
jQuery
Set Up Caching in PHP With the Symfony Cache Component
Learn about the Symfony Cache component, an easy way to add caching to your PHP applications. This helps improve the overall performance of your application...
Sajal Soni
12 Sep 2018
PHP
How to Upload a File in PHP (With Example)
Learn the basics of file upload in PHP. Firstly, we’ll go through the PHP configuration options that need to be in place for successful file uploads....
Sajal Soni
10 Sep 2018
PHP
New Course: Create Your Own Alexa Skill
Creating your own Amazon Alexa skill from scratch is easier than you thought. In our new course, Create Your Own Alexa Skill, you'll learn how to build a new...
Andrew Blackman
10 Sep 2018
Amazon Alexa
How to Formulate an Email Design and Development Strategy
In this tutorial I’ll explain how to focus your efforts on the email clients and webmail clients being used by your target audience.
Paul Airy
10 Sep 2018
Email Design
8 New Ways to Refactor Your Code With Swift 4
Swift is one of the fastest-growing languages in history, due to its elegance, simplicity, and “safety by design”. In this post, you'll learn how to use...
Doron Katz
5 Sep 2018
Swift