Free
Course

Learn Kotlin

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

4.52 out of 5 stars
72,916 learners enrolled
  • Skill level

    Beginner
  • Time to complete

    Average based on combined completion rates — individual pacing in lessons, projects, and quizzes may vary
    9 hours
  • Certificate of completion

    Included with paid plans
  • Prerequisites

    None

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.

Syllabus

11 lessons • 8 projects • 7 quizzes

The platform

Hands-on learning

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Meet the creator of the course
Alisha Grama
Senior Instructional Designer, Computer Science at Codecademy
Alisha is a Senior Instructional Designer in the computer science domain at Codecademy. Alisha majored in Computer Science and minored in Ethics at the University of Rochester, where she gained experience as a Teaching Assistant. Before joining Codecademy, she taught STEM concepts to secondary students, including as the Lead Algebra Teacher at a Brooklyn charter school.

Learn Kotlin course ratings and reviews

4.52 out of 5 stars
723 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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What Is Kotlin Used For?

Codecademy Team
Oct 5, 2021

Kotlin is a programming language that was released in 2011 by JetBrains, a company that sells integrated development environments (IDEs) for programming languages. Since then, it’s become a favorite language for developers and replaced Java in many software projects.

In this article, we’ll look at why Kotlin became popular, its advantages, and what it’s used for.

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Join over 50 million learners and start Learn Kotlin today!

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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.