The purely functional runtime system for Scala
Simple, fast, transparent generic derivation for typeclasses
Functional programming toolbox
cats transformer type classes.
Seamless interop layer between cats and scalaz
Tiny independent libraries with a single purpose, often a single class
Principled, fast, typeclass derivation.
Purely functional testing in Scala
Introduces macro/meta annotations @ aux, @ self, @ instance, @ apply, @ delegated, @ syntax and String-based type class LabelledGeneric
Scalaz typeclasses <~> Playframework2 typeclasses
JSON typeclasses that know the difference between null and absent fields
Date and time types and instances
Generic programming for Scala
A Scala library containing utility typeclasses