Codecademy

Codecademy is the easiest way to learn how to code. It's interactive, fun, and you can do it with your friends.

Freemium Web

Free Code Camp

Free Code Camp's open source community help you build a job-worthy portfolio of real apps used by real people, while helping nonprofits.

Free Open Source Web

Code School

Code School teaches web technologies in the comfort of your browser with video lessons, coding challenges, and screencasts.

Freemium Web

CodinGame

CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics.

Free Web

hackerrank.com

A fun social platform for hackers to solve interesting puzzles, build quick hacks, code game bots and collaborate to solve real-world challenges.

Free Web

Coderbyte

Coderbyte is a place built for anyone to practice and perfect their programming skills. Challenges are added almost every day so you can work on applying your algorithmic thought process on any problem you want at anytime.

Freemium Web

Codelearn

Teaching technology via app development. Learn By Doing : We believe that the best way to learn a language is to attempt building something on it. With tests to check your progress, our courses help you learn while coding.

Freemium Web

Project Euler

Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.

Free Web

CodeCloud.me

Want to learn how to code but don't know where to start? CodeCloud can help you to learn coding by building cool projects.

Free Android Web

CodeFights

Duel with friends and foes in head-to-head programming battles!.

Free Personal Web

exercism

Download and solve practice problems in over 30 different languages. For code newbies and experienced programmers.

Free Open Source Web Terminal

Codeasy

Interactive platform for learning C# where you learn coding by reading an adventure story about fighting machines in the future. While reading you gonna meet challenges that require real coding to solve.

Free Mac OS X Windows Linux Android iPad Chrome OS Web

Codewars

Achieve code mastery through challenge. Improve your skills by training with others on real code challenges Kata In our dojo, kata are real code challenges...

Free Self-Hosted

Codechef

CodeChef was created by Directi as a way to continuously challenge and engage the developer community. Our goals are to provide a platform for practice, competition and...

Free Web

CheckIO

CheckiO is expanding the world’s code literacy through gameplay. We always wanted to create the most entertaining game where gaming and coding experiences are interlaced, where there is no border between playing and learning new skills.

Free Open Source Web Pycharm WebStorm

Topcoder

Topcoder provides members opportunities to demonstrate their expertise, improve their skills, and win cash, while helping real world organizations solve real world problems.

Free Web

Hackerearth

a social and community platform for students and developers for solving programming puzzles, sharing notes and practicing concepts with the online editor, live...

Free Web