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

Scala Scripting

Cask: a Scala HTTP micro-framework

A simple testing framework for Scala

Scala library providing "source" metadata to your program, similar to Python's __name__, C++'s __LINE__ or Ruby's __FILE__.

Pretty-printing value, types and type-signatures in Scala

OS-Lib is a simple, flexible, high-performance Scala interface to common OS filesystem and subprocess APIs

A small, convenient, dependency-free library for command-line argument parsing in Scala

Provides the geny.Generator data type, the dual to a scala.Iterator that can ensure resource cleanup

Scala/Scala.js library for manipulating Fancy Ansi colored strings