typelevel/mouse

A small companion to cats

typelevel/cats-mtl

cats transformer type classes.

creativescala/doodle

Compositional vector graphics in Scala / Scala.JS

ThoughtWorksInc/each

A macro library that converts native imperative syntax to scalaz's monadic expressions

alexarchambault/case-app

Type-level & seamless command-line argument parsing for Scala

hedgehogqa/scala-hedgehog

Release with confidence, state-of-the-art property testing for Scala.

typelevel/cats-tagless

Library of utilities for tagless final encoded algebras

scala-js/scala-js-dom

Statically typed DOM API for Scala.js

scala/scala-xml

The standard Scala XML library

christopherdavenport/log4cats

Logging Tools For Interaction with cats-effect

lemonlabsuk/scala-uri

Simple scala library for building and parsing URIs

tpolecat/natchez

functional tracing for cats

zio/zio-json

Fast, secure JSON library with tight ZIO integration.

alexarchambault/scalacheck-shapeless

Generation of arbitrary case classes / ADTs instances with scalacheck and shapeless

thoughtworksinc/dsl.scala

A framework to create embedded Domain-Specific Languages in Scala

typelevel/machinist

Spire's macros for zero-cost operator enrichment

outr/youi

Next generation user interface and application development in Scala and Scala.js for web, mobile, and desktop.

scalameta/munit

Scala testing library with actionable errors and extensible APIs

julienrf/play-json-derived-codecs

lihaoyi/fansi

Scala/Scala.js library for manipulating Fancy Ansi colored strings