Powerful new number types and numeric abstractions for Scala.
Compiler plugin for making type lambdas (type projections) easier to write
Jawn is for parsing jay-sawn (JSON)
Fast, deboxed, specialized data structures for Scala
macro for summoning implicit values
Simple, efficient wrapper for fast concatenation/iteration.
Discover java object sizes through questionable sleuthing plus luck.
algebraic manipulation of regular expressions
Cats instances and classes which are outlaws, miscreants, and ne'er-do-wells.
Library that provides those stupid little IO utility methods you always end up needing.
Run javap directly from the SBT console
Provide names for numbers in English
methods for divination and predicting the future
Efficient immutable wrappers for unboxed data