Concurrency Libraries
Sort by:Popular

Apache Pekko is a toolkit for building highly concurrent, distributed, and resilient message-driven applications for Java and Scala.
Last Release on May 1, 2026
Akka is a toolkit for building highly concurrent, distributed, and resilient message-driven applications for Java and Scala.
Last Release on Aug 15, 2025
Airlift - Concurrent
Last Release on Apr 29, 2026
Androidx implementation of Guava's ListenableFuture
Last Release on Jul 16, 2025
Kotlin Extensions for Androidx implementation of Guava's ListenableFuture
Last Release on Jul 16, 2025
This project contains utility classes that are used by various products and projects inside Atlassian and may have some utility to the world at large.
Last Release on Sep 25, 2024

Apache Pekko is a toolkit for building highly concurrent, distributed, and resilient message-driven applications for Java and Scala.
Last Release on May 1, 2026
Concurrent
Last Release on Feb 19, 2026
Reactive Extensions for Java
Last Release on Feb 13, 2021

Relocated → io.reactivex.rxjava3 » rxjava
Compatible Implementation of Jakarta Concurrency
Last Release on Jun 28, 2025