Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3

A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

The Community Maintained High Velocity Web Framework For Java and Scala.

A fault tolerant, protocol-agnostic RPC system

Modern Load Testing as Code

Apache OpenWhisk is an open source serverless cloud platform

The Scala 3 compiler, also known as Dotty.

sbt, the interactive build tool

Principled Functional Programming in Scala

Scala.js, the Scala to JavaScript compiler

Your favorite language gets closer to bare metal.

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

In-memory dimensional time series database.

In-memory message queue with an Amazon SQS-compatible interface. Runs stand-alone or embedded.

Wonderful reusable code from Twitter

Reactive Microservices for the JVM

A better build tool for Java, Scala and Kotlin: 3-6x faster than Maven or Gradle, less fiddling with plugins, and more easily explorable in your IDE

A Scala API for Apache Beam and Google Cloud Dataflow.

Yet another JSON library for Scala

Compositional, streaming I/O library for Scala

Scala language server with rich IDE features 🚀

The pure asynchronous runtime for Scala

Pure Scala Artifact Fetching

Scala GraphQL implementation

Property-based testing for Scala

Asynchronous, Reactive Programming for Scala and Scala.js.

Optics library for Scala

Facebook's React on Scala.JS

Reactive data-binding for Scala

The Scala HTTP client you always wanted!