Are Kotlin coroutines concurrent?

Kotlin coroutines & structured concurrency In Kotlin, we can create coroutines using builders such as launch and async , which return a Job instance . This Job may further contain nested coroutine builders that create children Job instances that are computed concurrently.

Multithreaded coroutines coroutines library provides support for using multiple threads . It is a separate branch for the reasons listed in the future concurrency model blog post. However, you can still use the multithreaded version of kotlinx.

Threads. Coroutines are very similar to threads. However, coroutines are cooperatively multitasked, whereas threads are typically preemptively multitasked. Coroutines provide concurrency but not parallelism .