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ZIO

ZIO — Real World Functional Programming

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ZIO

ZIO is a type-safe functional effect in Scala for asynchronous and concurrent programming. To learn more about ZIO, visit zio.dev.

ZIO Ecosystem

ZIO has a growing ecosystem of libraries and tools for building next-generation reactive applications on JVM, Scala.js, and Scala Native. Here is the overview of its ecosystem:

  1. Official ZIO libraries are hosted in the ZIO organization on Github and maintained by core contributors to ZIO. We have a quick overview for these libraries on the ZIO website.

  2. There is also a growing ecosystem of community-maintained libraries outside the ZIO organization. These are listed on the ecosystem section of the ZIO website.

Ecosystem Tracker

We have a ZIO Ecosystem Tracker that provides a comprehensive overview of each library in the ecosystem, including:

  • What libraries are updated to the latest ZIO version? Every library which has a green checkmark is up to date. A yellow exclamation mark means that the library is not up to date and there are some work left to be done.
  • What is the latest release of each library?
  • What are the dependencies of each library?
  • What other libraries are on top of a given library?
  • It provides a copy-pasteable dependency configuration for each library.

Project Status

Each project in the ZIO organization namespace has a Stage Badge which indicates the current status of that project:

Stage Description
Production Ready The project is stable and already used in production. We can expect reliability for the implemented use cases.
Development The project already has RC or milestone releases but is still under active development. We should not expect full stability yet.
Experimental The project is not yet released, but an important part of the work is already done.
Research The project is at the design stage, with some sketches of work but nothing usable yet.
Concept The project is just an idea, and the development hasn't started yet.
Deprecated The project is not maintained anymore, and we don't recommend its usage.

Pinned Loading

  1. zio zio Public

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

    Scala 4.2k 1.4k

  2. zio-http zio-http Public

    A next-generation Scala framework for building scalable, correct, and efficient HTTP clients and servers

    Scala 823 441

  3. interop-cats interop-cats Public

    ZIO instances for cats-effect type classes

    Scala 159 66

  4. zio-kafka zio-kafka Public

    A fast Kafka client for ZIO and ZIO Streams

    Scala 356 141

  5. zio-prelude zio-prelude Public

    A lightweight, distinctly Scala take on functional abstractions, with tight ZIO integration

    Scala 462 116

  6. zio-schema zio-schema Public

    Compositional, type-safe schema definitions, which enable auto-derivation of codecs and migrations.

    Scala 151 181

Repositories

Showing 10 of 45 repositories
  • zio-blocks Public

    Powerful, joyful building blocks for modern cloud-native applications.

    zio/zio-blocks’s past year of commit activity
    Scala 30 19 3 1 Updated Jun 19, 2025
  • zio-aws Public

    Low level ZIO interface for the full AWS

    zio/zio-aws’s past year of commit activity
    Scala 147 Apache-2.0 35 19 (1 issue needs help) 0 Updated Jun 19, 2025
  • zio-json Public

    Fast, secure JSON library with tight ZIO integration.

    zio/zio-json’s past year of commit activity
    Scala 422 Apache-2.0 149 62 (3 issues need help) 10 Updated Jun 19, 2025
  • zio-dynamodb Public

    Simple, type-safe, and efficient access to DynamoDB

    zio/zio-dynamodb’s past year of commit activity
    Scala 40 Apache-2.0 20 18 (3 issues need help) 5 Updated Jun 19, 2025
  • zio Public

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

    zio/zio’s past year of commit activity
    Scala 4,220 Apache-2.0 1,352 117 (4 issues need help) 21 Updated Jun 19, 2025
  • zio-redis Public

    A ZIO-based redis client

    zio/zio-redis’s past year of commit activity
    Scala 126 Apache-2.0 64 15 3 Updated Jun 19, 2025
  • zio-http Public

    A next-generation Scala framework for building scalable, correct, and efficient HTTP clients and servers

    zio/zio-http’s past year of commit activity
    Scala 823 Apache-2.0 441 98 (2 issues need help) 19 Updated Jun 19, 2025
  • zio-schema Public

    Compositional, type-safe schema definitions, which enable auto-derivation of codecs and migrations.

    zio/zio-schema’s past year of commit activity
    Scala 151 Apache-2.0 181 51 (1 issue needs help) 8 Updated Jun 18, 2025
  • zio-kafka Public

    A fast Kafka client for ZIO and ZIO Streams

    zio/zio-kafka’s past year of commit activity
    Scala 356 Apache-2.0 141 16 (6 issues need help) 0 Updated Jun 18, 2025
  • zio-quill Public

    Compile-time Language Integrated Queries for Scala

    zio/zio-quill’s past year of commit activity
    Scala 2,158 Apache-2.0 351 287 36 Updated Jun 18, 2025