typelevel / cats-effect

The pure asynchronous runtime for Scala

typelevel / cats

Lightweight, modular, and extensible library for functional programming.

typelevel / doobie

Functional JDBC layer for Scala.

optics-dev / Monocle

Optics library for Scala

milessabin / shapeless

Generic programming for Scala

http4s / http4s

A minimal, idiomatic Scala interface for HTTP

typelevel / fs2

Compositional, streaming I/O library for Scala

typelevel / scalacheck

Property-based testing for Scala

monix / monix

Asynchronous, Reactive Programming for Scala and Scala.js.

fthomas / refined

Refinement types for Scala

typelevel / skunk

A data access library for Scala + Postgres.

typelevel / kind-projector

Compiler plugin for making type lambdas (type projections) easier to write

typelevel / frameless

Expressive types for Spark.

typelevel / kittens

Automatic type class derivation for Cats