Kotlin Community Chooses Best Libraries of the Year: Kotlin Multiplatform, Ktor, and Koin Become Leaders

Kotlin Community Chooses the Best Libraries of the Year: Voting Results

The annual vote among Kotlin developers has concluded, and the Kotlin community has finally determined the best libraries of 2024. This year, the competition was particularly high: over 200 nominees, thousands of votes, and heated debates in professional chats. We have gathered the main results and tell you which tools are recognized as the most useful and in-demand.

Winners in Key Categories

The voting took place in several categories covering all areas of development — from the server side to mobile applications and multiplatform. Here are the top three that received the greatest recognition:

• Kotlin Multiplatform (KMP) — a library that allows writing common code for Android, iOS, Web, and Desktop. This year, KMP took first place in the "Best Technology of the Year" category. Developers noted its maturity, API stability, and active support from JetBrains.
• Ktor — an asynchronous web framework for building server and client applications. Ktor received the "Best Server Framework" award due to its lightness, modularity, and excellent integration with Kotlin coroutines.
• Koin — a dependency injection (DI) library that surpassed Dagger Hilt and Kodein. Koin was recognized as the "Best DI Solution" for its ease of setup, minimal code, and clear documentation.

Surprises and Unexpected Favorites

In addition to the traditional leaders, this year the community highlighted several libraries that were not previously in the top 10. Among them:

• Compose Multiplatform — a declarative UI framework that is rapidly gaining popularity. Developers called it "the future of cross-platform development," and Compose Multiplatform took second place after KMP in the multiplatform category.
• Arrow — a library for functional programming that received the "Best Tool for Clean Code" award. Arrow helps write more predictable and testable applications.
• Kotest — a powerful testing framework recognized as the "Best Testing Tool of the Year." Kotest surpassed JUnit 5 thanks to support for property-based testing and flexible test description styles.

Why These Libraries Matter for Developers

The community's choice is not just a formality. Each of these libraries solves real problems that Kotlin developers face. For example, Kotlin Multiplatform allows reducing development time by up to 40% through code reuse across platforms. Ktor, in turn, provides high performance when working with microservices, while Koin simplifies application assembly to a minimum.

Interestingly, many winners actively use Kotlin coroutines — this confirms the trend towards asynchrony and reactivity in modern development. Additionally, almost all libraries in the top are open source and actively supported by the community.

How This Will Affect the Kotlin Ecosystem

According to experts, the voting results will set the development direction for the coming year. Developers will more actively adopt Kotlin Multiplatform in commercial projects, and Compose Multiplatform could become the standard for UI on all platforms. Ktor and