Learn Kotlin
Learn Kotlin, the expressive, open-source programming language developed by JetBrains.
Learn Kotlin is a beginner-level online course from Codecademy in Kotlin. It is structured in 7 modules with 4 stated learning outcomes, over 9h. It is free to enrol, and a certificate is available on completion. Learners rate it 4.5/5 from 1.1K ratings on Codecademy.
Part of our Kotlin courses collection.
Course highlights
| Provider | Codecademy |
| Duration | 9h |
| Level | Beginner |
| Mode | Self-paced |
| Language | English |
| Certificate | Yes — shareable certificate |
| Rating | 4.5★ (1.1K reviews) |
| Price | Free |
What you’ll learn
Level and time commitment
What this course covers
7 modulesThe 7-part outline Codecademy publishes for this course, across 9h.
Module 1 · Introduction to Kotlin
Module 2 · Data Types & Variables
Module 3 · Conditional Expressions
Module 4 · Collections
Module 5 · Loops
Module 6 · Functions
Module 7 · Classes
What learners rate it
Rated 4.5/5 by 1.1K learners on Codecademy (checked 26 Aug 2026).
This rating is collected by Codecademy from its own enrolled learners. We reproduce it as reported and do not accept paid or incentivised reviews. See it on Codecademy →
Compiled by the 10courses editorial desk. Fees, ratings, duration and certificate details for the 1 course shown are read directly from Codecademy course pages — we never estimate a price or a rating. Last verified 26 August 2026.
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Common questions
Is Learn Kotlin free?
Yes. Codecademy lists it as free to enrol. A certificate is available on completion — providers often charge separately for the certificate even when the course itself is free, so check the fee on the provider page before you count on it.
Does Learn Kotlin come with a certificate?
Yes — Codecademy lists a certificate on completion. It is a course certificate, not a formal qualification or university credit.
How long does Learn Kotlin take?
Codecademy lists it at 9h. It is self-paced, so that is the volume of material rather than a deadline — how long it actually takes depends on the hours you put in each week.
Is Learn Kotlin suitable for beginners?
Yes. Codecademy lists it at Beginner level, so no prior experience in the subject is assumed.
What does Learn Kotlin cover?
It is organised into 7 modules, starting with Introduction to Kotlin and going on to Data Types & Variables, Conditional Expressions, Collections, Loops, among others. The full outline is on this page.