apache/spark

Apache Spark - A unified analytics engine for large-scale data processing

scala/scala

Scala 2 compiler and standard library. For bugs, see scala/bug

apache/predictionio

PredictionIO, a machine learning server for developers and ML engineers.

rtyley/bfg-repo-cleaner

Removes large or troublesome blobs like git-filter-branch does, but faster. And written in Scala

playframework/playframework

Play Framework

twitter/finagle

A fault tolerant, protocol-agnostic RPC system

akka/akka

Build highly concurrent, distributed, and resilient message-driven applications on the JVM

apache/kafka

Mirror of Apache Kafka

lampepfl/dotty

The Scala 3 compiler, also known as Dotty.

typelevel/cats

Lightweight, modular, and extensible library for functional programming.

scalaz/scalaz

Principled Functional Programming in Scala

scala-js/scala-js

Scala.js, the Scala to JavaScript compiler

scala-native/scala-native

Your favorite language gets closer to bare metal.

gatling/gatling

Modern Load Testing as Code

scalanlp/breeze

Breeze is a numerical processing library for Scala.

milessabin/shapeless

Generic programming for Scala

twitter/scalding

A Scala API for Cascading

snowplow/snowplow

The enterprise-grade behavioral data engine (web, mobile, server-side, webhooks), running cloud-natively on AWS and GCP

spark-jobserver/spark-jobserver

REST job server for Apache Spark

scalatra/scalatra

Tiny Scala high-performance, async web framework, inspired by Sinatra