scala/scala

The Scala programming language

scala-js/scala-js

Scala.js, the Scala to JavaScript compiler

scalaz/scalaz

An extension to the core Scala library for functional programming.

scalatest/scalatest

A testing tool for Scala and Java developers

rickynils/scalacheck

Property-based testing for Scala

milessabin/shapeless

Generic programming for Scala

json4s/json4s

A single AST to be used by other scala json libraries

scopt/scopt

simple scala command line options parsing

nscala-time/nscala-time

A new Scala wrapper for Joda Time based on scala-time

mpilquist/simulacrum

First class syntax support for type classes in Scala

scala/scala-async

An asynchronous programming facility for Scala

scala/scala-java8-compat

A Java 8 compatibility kit for Scala.

tpolecat/tut

doc/tutorial generator for scala

scala/scala-parser-combinators

simple combinator-based parsing for Scala. formerly part of the Scala standard library, now a separate community-maintained module

scalamacros/paradise

Let our powers combine!

lihaoyi/sourcecode

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

typelevel/discipline

Flexible law checking for Scala

scala-js/scala-js-dom

statically typed dom wrappers for scala-js

scala/scala-xml

The standard Scala XML library.

milessabin/macro-compat

macro-compat is a small library which allows you to compile macros with Scala 2.10.x which are written to the Scala 2.11/2 macro API.