Scala 2 compiler and standard library. For bugs, see scala/bug
A testing tool for Scala and Java developers
Build highly concurrent, distributed, and resilient message-driven applications on the JVM
Property-based testing for Scala
The Scala 3 compiler, also known as Dotty.
Statically typed DOM API for Scala.js
Lightweight, modular, and extensible library for functional programming.
Software Specifications for Scala
Yet another JSON library for Scala
The pure asynchronous runtime for Scala
Convenient and performant logging library for Scala wrapping SLF4J.
Apache Spark - A unified analytics engine for large-scale data processing
Generic programming for Scala
The Streaming-first HTTP server/module of Akka
The Play JSON library
makes some Scala 2.13 APIs (primarily collections, also some others) available on 2.11 and 2.12, to aid cross-building
The standard Scala XML library