The original(?) drag-and-drop coding system for kids. Visit the site, set up an account and click “Create” to get going.
A version of Scratch aimed at younger kids working on tablets.
A visual, “guided” introduction to coding for ages as young as 4 and up to 18.
Learn coding by programming the game while you’re playing
Make apps for Android phones and tablets
Alice is a bit like scratch at first, but aims to teach fundamental programming concepts as well as things like object-oriented programming. You need to download and install it first. It’s pretty big, so allow plenty of time!
An enormous collection of tutorials, not just IT, but also science, maths, arts and economics.
Django Girls is a group working to encourage women to join the world of IT. In particular they work with the Django web framework, using the Python programming language. Their excellent tutorial will get you up and running from zero to a working web application in a few hours.
One of the best-known reference websites for web programming.
Probably the single most famous and useful Q&A programming website, used by millions of professional programmers across the world.