Cats Ecosystem

Discover libraries and tools for functional programming in Scala with Cats.

Core

Core library for functional programming providing type classes and data types.

Pure asynchronous runtime for Scala with high-level concurrency primitives.

Small companion library to Cats providing enrichments to standard library types.

Automatic type class derivation for Cats using Shapeless.

Monad transformer library providing type classes for common monad transformers.

Parser combinator library for building efficient parsers.

Less law-abiding companion library to Cats providing lawless type classes.