typelevel/cats

Lightweight, modular, and extensible library for functional programming.

polynote/polynote

A better notebook for Scala (and more)

lagom/lagom

Reactive Microservices for the JVM

slick/slick

Scala Language Integrated Connection Kit

twitter/algebird

Abstract Algebra for Scala

typelevel/spire

Powerful new number types and numeric abstractions for Scala.

paypal/squbs

Akka Streams & Akka HTTP for Large-Scale Production Deployments

almond-sh/almond

A Scala kernel for Jupyter

locationtech/geotrellis

GeoTrellis is a geographic data processing engine for high performance applications.

outworkers/phantom

Schema safe, type-safe, reactive Scala driver for Cassandra/Datastax Enterprise

lihaoyi/scala.rx

An experimental library for Functional Reactive Programming in Scala

eaplatanios/tensorflow_scala

TensorFlow API for the Scala Programming Language

skinny-framework/skinny-framework

:monorail: "Scala on Rails" - A full-stack web app framework for rapid development in Scala

scalalandio/chimney

Scala library for boilerplate-free, type-safe data transformations

suzaku-io/diode

Scala library for managing immutable application model

scalameter/scalameter

Microbenchmarking and performance regression testing framework for the JVM platform.

sksamuel/scapegoat

Scala compiler plugin for static code analysis

swagger-api/swagger-play

softwaremill/retry

because you should never give up, at least not on the first try

julienrf/endpoints

Scala library to define HTTP-based communication protocols