milessabin/shapeless

Generic programming for Scala

functional-streams-for-scala/fs2

Compositional, streaming I/O library for Scala

monix/monix

Asynchronous, Reactive Programming for Scala and Scala.js.

japgolly/scalajs-react

Facebook's React on Scala.JS

tpolecat/doobie

Functional JDBC layer for Scala.

typelevel/cats-effect

The purely functional runtime system for Scala

typelevel/frameless

Expressive types for Spark.

pepegar/hammock

Purely functional HTTP client

japgolly/nyaya

Random Data Generation and/or Property Testing in Scala & Scala.JS.

kubukoz/sup

Composable, purely functional healthchecks in Scala.

japgolly/test-state

Scala Test-State.

japgolly/scala-graal

banno/kafka4s

Functional programming with Kafka and Scala

laserdisc-io/laserdisc

A Future-free Fs2 native pure FP Redis client

tpolecat/tuco

Reasonable telnet server for Scala.

zio/zio-logging

Simple logging for ZIO apps, with correlation, context & pluggable backends out of the box.

kubukoz/flawless

WIP Delightful, purely functional testing no-framework. Don't even try to use it at work!

oleg-py/stm4cats

STM monad for cats-effect

slamdata/fs2-ssh

A wrapper around Apache SSHD targeting cats-effect and fs2

permutive/fs2-google-pubsub

Google Cloud Pub/Sub stream-based client built on top of cats-effect, fs2 and http4s.