Kotlin from Zero to Pro: YouTube Channels and Courses Worth Watching

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Kotlin — not just "the new Java," but your ticket to modern development

Remember the times when Android development was exclusively associated with cumbersome Java, endless findViewById, and boilerplate? Google heard developers' prayers and in 2017 made Kotlin the official language for Android. Seven years have passed since then, and Kotlin hasn't just survived — it has conquered not only mobile development but also backend (thanks to Ktor), data science, and even cross-platform projects via Kotlin Multiplatform.

If you've decided to master Kotlin but don't know where to start — you've come to the right place. In this article, we've gathered the best YouTube channels and online courses on Kotlin that will help you go from "Hello, World!" to writing your own app with coroutines and DI. No fluff — only proven resources that actually work.

Why should you learn Kotlin right now?

Before diving into the list of channels, let's quickly break down why Kotlin is not hype but a necessity:

90% of new apps on Google Play are written in Kotlin. If you want to become an Android developer, there's only one path.
Kotlin Multiplatform allows you to share code between iOS, Android, and the web. The time savings are enormous.
Kotlin for backend: frameworks like Ktor and Spring Boot with Kotlin support give Java a run for its money in terms of conciseness.
Null safety — you'll simply stop fearing NullPointerException.

And now — let's get down to business. Here's a selection that will save you hours of searching.

🔥 Top YouTube Channels on Kotlin (free and packed with content)

1. Android Broadcast — for those who love structure

One of the most popular Russian-language channels on Android development. The host, Sergey Kashtanov, explains complex things in simple terms. Here you'll find playlists on Kotlin Coroutines, Jetpack Compose, and app architecture.

What to watch first:

"Kotlin from Zero to Junior" — the perfect start for beginners.
"Coroutines and Flow" — a breakdown of multithreading with real-world examples.

2. Sergey Nemchinsky — the godfather of Android development

If you've watched his Java course, you know — Sergey knows how to explain things. His playlist "Kotlin for Beginners" is a classic: from syntax to writing your first app. Bonus: he often breaks down real interview problems.

Code example from the channel:

// Higher-order function — a topic Sergey covers in detailfun processNumbers(list: List<Int>, operation: (Int) -> Int): List<Int> {    return list.map { operation(it) }}

fun main() {    val numbers = listOf(1, 2, 3, 4, 5)    val doubled = processNumbers(numbers) { it * 2 }    println(doubled) // [2, 4, 6, 8, 10]}

3. Kotlin Weekly — news and best practices in English

For those who want to stay on trend. The channel doesn't release content very often, but each episode is a concentrate of useful things: new language features, library updates, and tips from JetBrains.

4. GopherVids — an unexpected wildcard

Yes, it's a channel about Go, but the author periodically releases comparisons of Go and Kotlin. If you already know one language and want to switch to Kotlin — this is a great way to understand the difference in approaches to concurrency and error handling.

📚 Paid and Free Courses: From Beginner to Pro

5. Stepik: "Kotlin for Beginners" by JetBrains

A free course from the creators of the language. This is the foundation everyone should go through. 15 modules, practical assignments, a certificate. Downside: the material is slightly outdated (missing Compose), but the basics of syntax are perfect.