Kotlin/kotlinx.coroutines

Health v2 · maintenance only

Adoption not part of the score

13805 stars · 1947 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

The official JetBrains library providing coroutine support for Kotlin, with multiplatform support across JVM, Android, JS, Native, and Wasm. It offers coroutine builders, dispatchers, Flow reactive streams, and synchronization primitives like Channel, Mutex, and Semaphore.

Use cases

• write asynchronous non-blocking code in Kotlin
• run background tasks off the main thread on Android
• build reactive data streams with Flow
• cancel and structure concurrent tasks safely
• integrate with CompletableFuture and Promise APIs
• parallelize work with async/await-style concurrency

When to choose

• you need structured concurrency and cancellation in Kotlin
• you are building Android, server-side, or multiplatform Kotlin apps with async needs
• you want Flow-based reactive streams without heavy frameworks

When to avoid

• your project is not in Kotlin or a Kotlin-compatible target
• you need a general-purpose threading library for non-Kotlin JVM languages

Facets

library · maturity stable

concurrency developer-tools cross-platform jvm cross-platform kotlin coroutines async flow structured-concurrency multiplatform android ios web-server nodejs

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