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Welcome to JSCodebox!

Free JavaScript Challenges

  • Learn or improve your JavaScript skills
  • Completely free
  • No registration necessary
  • Different levels of difficulty
    •     ...and much more cool stuff!
Demo of a JSCodebox ChallengeDemo of a JSCodebox Challenge
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Never programmed with JavaScript before?

Start with this course and learn the fundamentals concepts of JavaScript

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I want to improve my JavaScript skills

Start with these simple challenges and then increase the level

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I'm a JavaScript PRO, give me challenge!

Try to solve our complex JavaScript challenges

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I would like to choose the difficulty myself

Then here is a list of all our challenges for you

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...or solve challenges of a specific category

#JavaScript Strings #JavaScript Numbers #JavaScript DOM Manipulation (UI) #JavaScript Arrays #JavaScript Loops #JavaScript Recursion #JavaScript Object Notation (JSON) #JavaScript Logic #JavaScript Objects