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.

Modern Load Testing as Code

Lightweight, modular, and extensible library for functional programming.

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

Scala Scripting

Yet another JSON library for Scala

Asynchronous, Reactive Programming for Scala and Scala.js.

Optics library for Scala

Facebook's React on Scala.JS

A data access library for Scala + Postgres.

Reactive data-binding for Scala

Experimental Scala compiler focused on compilation speed

Scala library for boilerplate-free, type-safe data transformations

An implementation of the java pet store using FP techniques in scala

uPickle: a simple, fast, dependency-free JSON & Binary (MessagePack) serialization library for Scala

Tutorial for creating a simple Single Page Application in ScalaJS

Write Scala.js React apps just like you would in ES6

Scala library for managing immutable application model

Build truly native cross platform (web,ios,android) apps using scalajs and react, react-native

Scala framework for building beautiful and maintainable web applications.

Binary serialization library for efficient network communication

Super type-safe CSS for Scala and Scala.JS.

Statically typed DOM API for Scala.js

Thin Scala wrapper for Caffeine (https://github.com/ben-manes/caffeine)

Tooling around scala-js

The Scala Package Index

Random Data Generation and/or Property Testing in Scala & Scala.JS.