Scala Functional Reactive Programming

Open-source Scala projects categorized as Functional Reactive Programming

Top 13 Scala Functional Reactive Programming Projects

Functional Reactive Programming
  1. ZIO

    ZIO — A type-safe, composable library for async and concurrent programming in Scala

    Project mention: Scala 3 Migration: Report from the Field | news.ycombinator.com | 2025-02-06

    I use ZIO (https://zio.dev) and nothing really like it exists on any platform.

    You can wrap any computation in a single ZIO object e.g. normal, callback, future, promise etc. Which you can then chain together in different ways e.g. run them in parallel, sequentially, race them against each other and kill the loser, scheduling in elaborate ways etc.

    And it will execute this either using normal or virtual threads i.e. fibers without locks so it’s extremely fast.

    But the incredible part is that it does all of this whilst seamlessly handling every type of error. Which if you’ve ever written complex concurrent code is extremely hard to get right.

  2. InfluxDB

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  3. Monix

    Asynchronous, Reactive Programming for Scala and Scala.js.

  4. Scala.Rx

    An experimental library for Functional Reactive Programming in Scala

  5. RxScala

    RxScala – Reactive Extensions for Scala – a library for composing asynchronous and event-based programs using observable sequences

  6. Laminar

    Simple, expressive, and safe UI library for Scala.js (by raquo)

  7. kyo

    Toolkit for Scala Development

    Project mention: Playground Wisdom: Threads Beat Async/Await | news.ycombinator.com | 2024-11-21

    Thank you for writing this - it is more detailed that I could come up with!

    I would like to add that I feel like functional approaches are more the "future" of programming than trying to iterate over imperative ones to make them as "nice" to use. So I don't really see the big deal of trying to add-on features to existing languages when you can adopt new ones (or experiment with existing ones e.g. https://github.com/getkyo/kyo for a new take on effects in Scala).

  8. Airstream

    State propagation and event streams with mandatory ownership and no glitches (by raquo)

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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  10. Iteratee

    Iteratees for Cats

  11. typed-actors

    compile-time typechecked akka actors

  12. SynapseGrid

    SynapseGrid is a framework for constructing dynamic low latency data flow systems.

  13. REScala

    REScala - distributed and reactive programming embedded in OO and FP programs.

  14. scala.frp

    Functional Reactive Programming for Scala

  15. Reactive Collections

    A concurrent reactive programming framework. (by storm-enroute)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source Functional Reactive Programming projects in Scala? This list will help you:

# Project Stars
1 ZIO 4,216
2 Monix 1,933
3 Scala.Rx 988
4 RxScala 886
5 Laminar 797
6 kyo 676
7 Airstream 256
8 Iteratee 183
9 typed-actors 144
10 SynapseGrid 124
11 REScala 91
12 scala.frp 24
13 Reactive Collections 4

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