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@akka

Akka Project

README.md

Akka -- Build powerful reactive, concurrent, and distributed applications more easily

Akka is a toolkit for building highly concurrent, distributed, and resilient message-driven applications for Java and Scala.

Akka is the implementation of the Actor Model on the JVM.

Simpler Concurrent & Distributed Systems

Actors and Streams let you build systems that scale up, using the resources of a server more efficiently, and out, using multiple servers.

Resilient by Design

Building on the principles of The Reactive Manifesto Akka allows you to write systems that self-heal and stay responsive in the face of failures.

High Performance

Up to 200 million msg/sec on a single machine. Small memory footprint; ~2.5 million actors per GB of heap.

Elastic & Decentralized

Distributed systems without single points of failure. Load balancing and adaptive routing across nodes. Event Sourcing and CQRS with Cluster Sharding. Distributed Data for eventual consistency using CRDTs.

Reactive Streaming Data

Asynchronous non-blocking stream processing with backpressure. Fully async and streaming HTTP server and client provides a great platform for building microservices. Streaming integrations with Alpakka.

Find the full documentation at https://akka.io

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  1. akka-sdk akka-sdk Public

    The Akka SDK offer a set of components that let you build durable, responsive, real-time services.

    Java 3 8

  2. akka akka Public

    A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

    Scala 13.2k 3.6k

  3. akka-http akka-http Public

    The Streaming-first HTTP server/module of Akka

    Scala 1.3k 594

  4. akka-projection akka-projection Public

    Akka Projections is intended for building systems with the CQRS pattern, and facilitate in event-based service-to-service communication.

    Scala 103 36

  5. alpakka alpakka Public

    Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

    Scala 1.3k 642

  6. alpakka-kafka alpakka-kafka Public

    Alpakka Kafka connector - Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

    Scala 1.4k 384

Repositories

Showing 10 of 50 repositories
  • akka-sdk Public

    The Akka SDK offer a set of components that let you build durable, responsive, real-time services.

    akka/akka-sdk’s past year of commit activity
    Java 3 8 10 15 Updated May 16, 2025
  • akka-management Public

    Akka Management is a suite of tools for operating Akka Clusters.

    akka/akka-management’s past year of commit activity
    Scala 253 160 110 (34 issues need help) 3 Updated May 15, 2025
  • akka Public

    A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

    akka/akka’s past year of commit activity
    Scala 13,160 3,586 859 (200 issues need help) 25 Updated May 15, 2025
  • akka-grpc Public

    A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

    akka/akka-grpc’s past year of commit activity
    Scala 432 126 162 (14 issues need help) 5 Updated May 15, 2025
  • akka-persistence-jdbc Public

    Asynchronously writes journal and snapshot entries to configured JDBC databases so that Akka Actors can recover state

    akka/akka-persistence-jdbc’s past year of commit activity
    Scala 309 141 38 (2 issues need help) 3 Updated May 15, 2025
  • akka-persistence-cassandra Public

    A replicated Akka Persistence journal backed by Apache Cassandra

    akka/akka-persistence-cassandra’s past year of commit activity
    Scala 326 134 55 (10 issues need help) 5 Updated May 15, 2025
  • alpakka Public

    Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

    akka/alpakka’s past year of commit activity
    Scala 1,264 642 221 (2 issues need help) 36 Updated May 15, 2025
  • alpakka-kafka Public

    Alpakka Kafka connector - Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

    akka/alpakka-kafka’s past year of commit activity
    Scala 1,416 384 107 14 Updated May 15, 2025
  • akka-projection Public

    Akka Projections is intended for building systems with the CQRS pattern, and facilitate in event-based service-to-service communication.

    akka/akka-projection’s past year of commit activity
    Scala 103 36 76 (2 issues need help) 4 Updated May 15, 2025
  • akka-http Public

    The Streaming-first HTTP server/module of Akka

    akka/akka-http’s past year of commit activity
    Scala 1,334 594 576 (167 issues need help) 5 Updated May 12, 2025
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