Learn Kotlin

Learn Kotlin, the expressive, open-source programming language developed by JetBrains.

4.55 out of 5 stars
64,725 learners enrolled
  • Skill level

  • Time to complete

    Approx. 15 hours
  • Certificate of completion

    Included with paid plans
  • Prerequisites


About this course

Kotlin is a modern, expressive programming language made with developers in mind. Concise, open-source, and safe, Kotlin is a popular language for Android development, web development, and more.


11 lessons • 8 projects • 7 quizzes
The platform

4 out of 5 Codecademy learners achieve their goals

"Codecademy gave me the tools I needed to land my first job as a developer, completely changing my career from the waste industry." - Jonathan Manner, Sweden
Animated demonstration of running code in Codecademy's learning environment
Meet the creator of the course
Jace van Auken
Curriculum Developer at Codecademy
Jace is a Curriculum Developer with the Codecademy Computer Science team. He learned to code at an early age by reading a C Primer textbook and playing around with HyperCard on his Macintosh Plus.

Learn Kotlin course ratings and reviews

4.55 out of 5 stars
486 ratings
  1. 5 stars
  2. 4 stars
  3. 3 stars
  4. 2 stars
  5. 1 star
  • The lessons are amazingly lined up with real world examples to practice right after each lesson to reinforce learning. What else could a beginner ask for!
    Sidhu G.
    Verified Learner
  • Awesome intro to Kotlin course! The material was succinct, informative, and helped me grasp Kotlin syntax very well!
    Claire J.
    Verified Learner
  • I would highly recommend this course to get a grasp of the fundamentals of Kotlin. Well curated, well executed. I sincerely enjoyed this course.
    Charles M.
    Verified Learner

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Unlock additional features with a paid plan

  • Practice Projects

    Guided projects that help you solidify the skills and concepts you're learning.
  • Assessments

    Auto-graded quizzes and immediate feedback help you reinforce your skills as you learn.
  • Certificate of Completion

    Earn a document to prove you've completed a course or path that you can share with your network.

Join over 50 million learners and start Learn Kotlin today!