simple combinator-based parsing for Scala. formerly part of the Scala standard library, now a separate community-maintained module
A simple testing framework for Scala
A minimal, idiomatic Scala interface for HTTP
ScalaTest + ScalaCheck provides integration support between ScalaTest and ScalaCheck.
Add-on module for Jackson (https://github.com/FasterXML/jackson) to support Scala-specific datatypes
command line options parsing for Scala
Scala testing library with actionable errors and extensible APIs
A type-safe, reflection-free, powerful enumeration implementation for Scala with exhaustive pattern match warnings and helpful integrations.
Your favorite language gets closer to bare metal.
A Java 8 compatibility kit for Scala.
Asynchronous, Reactive Programming for Scala and Scala.js.
(No longer actively maintained.)
Twirl is Play's default template engine
Protocol buffer compiler for Scala.
Simple scala wrapper for HttpURLConnection. OAuth included.
Scala Language Integrated Connection Kit
Simple refinement types for Scala
Simple, safe and intuitive Scala I/O
First class syntax support for type classes in Scala