BlueJ is an integrated development environment (IDE) for the Java programming language.

Codecademy is an online interactive platform that offers free coding classes in 12 different programming languages.

Coderbyte is a web application that helps you practice your programming skills, prepare for coding bootcamps, and prepare for job interviews.

Nettuts+ is a popular site aimed at web developers and designers offering tutorials and articles on technologies, skills, and techniques.

Treehouse is an online school that teaches technology. Treehouse has courses on hundreds of topics.

W3Schools is a popular web site for learning web technologies online.

Code.org includes free coding lessons and the initiative also targets schools in an attempt to encourage them to include more computer science classes in the …

CodeHS is an interactive online learning platform offering computer science and programming instruction.

freeCodeCamp (“Free Code Camp”) is a nonprofit organization that consists of an interactive learning web platform, an online community forum, chat rooms, Medi…

Scratch is a free programming language and online community where you can create your own interactive stories, games, and animations.

Tutorialspoint provides free tutorials online.