Scala Effects

Open-source Scala projects categorized as Effects

Top 6 Scala Effect Projects

  • ZIO

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

    Project mention: The golden age of Kotlin and its uncertain future | | 2024-01-11
  • cats-effect

    The pure asynchronous runtime for Scala

    Project mention: A question about Http4s new major version | /r/scala | 2023-04-25

    Those benchmarks are using a snapshot version of cats-effect. I don't know where that one comes from, but previously they were using a snapshot from which had some issues (3.5-6581dc4, 70% performance degradation), which have since been resolved (see that PR for more info and comparative benchmarks).

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  • Eff

    Eff monad for cats -

  • tofu

    Functional programming toolbox

    Project mention: Companies with interesting Scala projects | /r/scala | 2023-06-02

    Tinkoff has a strong Scala FP presense: - - -

  • effekt

    A research language with effect handlers and lightweight effect polymorphism

    Project mention: What the imperative shell of an Functional Core/Imperative Shell language looks like | /r/ProgrammingLanguages | 2023-05-07

    I like it. Modern languages that distinguish between pure and impure programs like Flix, Koka, and Effekt do so on the type level instead of syntactically. This has three advantages:

  • Parapet

    A purely functional library to build distributed and event-driven systems

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). The latest post mention was on 2024-01-11.

Scala Effects related posts


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

Project Stars
1 ZIO 3,961
2 cats-effect 1,920
3 Eff 570
4 tofu 513
5 effekt 268
6 Parapet 136
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