scalameta/scalafmt

Code formatter for Scala

zio/zio-quill

Compile-time Language Integrated Queries for Scala

tpolecat/atto

friendly little parsers

davenverse/cats-scalacheck

Cats Instances For Scalacheck

cb372/scalacache

Simple caching in Scala

twitter/finatra

Fast, testable, Scala services built on TwitterServer and Finagle

sbt/sbt-header

sbt-header is an sbt plugin for creating file headers, e.g. copyright headers

tminglei/slick-pg

Slick extensions for PostgreSQL

http4s/blaze

Blazing fast NIO microframework and Http Parser

lagom/lagom

Reactive Microservices for the JVM

unfiltered/unfiltered

A toolkit for servicing HTTP requests in Scala

com-lihaoyi/requests-scala

A Scala port of the popular Python Requests HTTP client: flexible, intuitive, and straightforward to use.

scala-graph/scala-graph

Graph for Scala is intended to provide basic graph functionality seamlessly fitting into the Scala Collection Library. Like the well known members of scala.collection, Graph for Scala is an in-memory graph library aiming at editing and traversing graphs, finding cycles etc. in a user-friendly way.

typelevel/cats-parse

A parsing library for the cats ecosystem

disneystreaming/weaver-test

A test framework that runs everything in parallel.

suzaku-io/boopickle

Binary serialization library for efficient network communication

blemale/scaffeine

Thin Scala wrapper for Caffeine (https://github.com/ben-manes/caffeine)

trace4cats/trace4cats

Distributed app tracing implementation in pure scala using cats-effect

softwaremill/macwire

Lightweight and Nonintrusive Scala Dependency Injection Library

sbt/sbt-site

Site generation for sbt