ZIO logo


Zero-dependency Scala library for asynchronous and concurrent programming
+ 1

What is ZIO?

It is a type-safe composable asynchronous and concurrent programming library for Scala that is based on pure functional programming.
ZIO is a tool in the Concurrency Frameworks category of a tech stack.
ZIO is an open source tool with 3.8K GitHub stars and 1.2K GitHub forks. Here’s a link to ZIO's open source repository on GitHub

Who uses ZIO?

5 companies reportedly use ZIO in their tech stacks, including waylay, buildo, and Nslookup.

17 developers on StackShare have stated that they use ZIO.

ZIO Integrations

ZIO's Features

  • Build scalable applications with 100x the performance of Scala's Future
  • Use the full power of the Scala compiler to catch bugs at compile time
  • Easily build concurrent apps without deadlocks, race conditions, or complexity
  • Build apps that never leak resources (including threads!), even when they fail

ZIO Alternatives & Comparisons

What are some alternatives to ZIO?
RxJS is a library for reactive programming using Observables, to make it easier to compose asynchronous or callback-based code. This project is a rewrite of Reactive-Extensions/RxJS with better performance, better modularity, better debuggable call stacks, while staying mostly backwards compatible, with some breaking changes that reduce the API surface.
Akka is a toolkit and runtime for building highly concurrent, distributed, and resilient message-driven applications on the JVM.
Netty is a NIO client server framework which enables quick and easy development of network applications such as protocol servers and clients. It greatly simplifies and streamlines network programming such as TCP and UDP socket server.
Redux Observable
It allows developers to dispatch a function that returns an observable, promise or iterable of action(s). Compose and cancel async actions to create side effects and more.
Finagle is an extensible RPC system for the JVM, used to construct high-concurrency servers. Finagle implements uniform client and server APIs for several protocols, and is designed for high performance and concurrency.
See all alternatives
Related Comparisons
No related comparisons found

ZIO's Followers
24 developers follow ZIO to keep up with related blogs and decisions.