Pretty-printing value, types and type-signatures in Scala
makes a subset of the Scala 2.13 collections API available on 2.11 and 2.12, to aid cross-building
Automatic argonaut codec derivation with shapeless
Provides immutable datatypes for working with bits and bytes
Simple pure-scala Typesafe HOCON implementation using FastParse
Castor is a lightweight, typed Actor library for Scala and Scala.js
The first and only true Functional Reactive Programming framework for Scala.
Scala Verify is a minimal testing framework for Scala. Trust, but verify.
Functional HTML5 and XML library for the Scala platform
Scala cross platform configuration library supporting HOCON
Provides the geny.Generator data type, the dual to a scala.Iterator that can ensure resource cleanup
Automatic creation of typeclass evidence for monad-like types
Power assertions (as known from Groovy and Spock) for the Scala language.
A Typesafe-logging (and slf4j) compatible logging library based on macros for Scala/JVM, Scala.js, and Scala Native
typeclass based functional msgpack serializer/deserializer for Scala. support scala.js and scala-native / msgpack.org[Scala]
TypeTag without scala-reflect
ScalaTest + ScalaCheck provides integration support between ScalaTest and ScalaCheck.
immutable primitive array/NonEmptyArray wrapper for Scala
Implementation of java locale for scala.js