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Reactive & Actor Frameworks

Frameworks and libraries that provide actor‐based concurrency and reactive programming abstractions for building elastic, distributed, high‐performance applications.

10 projects

16,672 contributors

$89M

RxJS

A reactive programming library for JavaScript

Contributors

4,070

Organizations

1,142

Software value

$2.9M

Akka

Akka is a toolkit and runtime for building highly concurrent, distributed, and resilient message-driven applications on the JVM. It implements the Actor Model, providing a higher level of abstraction for writing concurrent and distributed systems.

Contributors

3,301

Organizations

732

Software value

$22M

Orleans

Cloud Native application framework for .NET

Contributors

2,587

Organizations

398

Software value

$11M

Vert.x

Vert.x is a tool-kit for building reactive applications on the JVM

Contributors

2,136

Organizations

491

Software value

$6.4M

Reactor Netty

Reactor Netty is a non-blocking and event-driven network application framework built on top of Netty, providing reactive streams backpressure-ready network engines for HTTP (including WebSockets), TCP, and UDP. It enables building fast and efficient network applications using reactive programming patterns.

Contributors

1,451

Organizations

269

Software value

$3.2M

Apache Pekko

Apache Pekko is a fork of Akka, providing a resilient actor-based framework for building concurrent, distributed applications on the JVM. It offers features for building reactive systems with message-driven communication, fault tolerance, and scalability patterns.

Contributors

1,305

Organizations

198

Software value

$21M

Akka.NET

Akka.NET is an open-source framework for building highly concurrent, distributed, and fault-tolerant event-driven applications on .NET. It is a port of the popular Akka framework from the JVM world, implementing the actor model to simplify the development of scalable applications.

Contributors

1,210

Organizations

258

Software value

$15M

CAF

An Open Source Implementation of the Actor Model in C++

Contributors

397

Organizations

90

Software value

$4.8M

Lingua Franca

Intuitive concurrent programming in any language

Contributors

215

Organizations

27

Software value

$2.2M

Apache Pekko HTTP

The Streaming-first HTTP server/module of Apache Pekko

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