Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3

A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

The Community Maintained High Velocity Web Framework For Java and Scala.

CMAK is a tool for managing Apache Kafka clusters

A fault tolerant, protocol-agnostic RPC system

The leader in Next-Generation Customer Data Infrastructure

Modern Load Testing as Code

sbt, the interactive build tool

Principled Functional Programming in Scala

A Scala API for Cascading

Breeze is/was a numerical processing library for Scala.

A distributed, fault-tolerant graph database

simple, distributed message queue system (inactive)

Wonderful reusable code from Twitter

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

A suite of scala libraries for building and consuming RESTful web services on top of Akka: lightweight, asynchronous, non-blocking, actor-based, testable

[Archived] A flexible sharding framework for creating eventually-consistent distributed datastores

Streaming MapReduce with Scalding and Storm

Lightning-fast cluster computing in Java, Scala and Python.

Development in Shark has been ended.

A library for building reliable, scalable and distributed event-sourced applications in Scala

Simple caching in Scala

Scalatron, a multi-player programming game in which coders pit bot programs (written in Scala) against each other

A Scala DSL for talking with databases with minimum verbosity and maximum type safety

The scala API for Dropwizard's Metrics.

REST job server for Spark. Note that this is *not* the mainline open source version. For that, go to https://github.com/spark-jobserver/spark-jobserver. This fork now serves as a semi-private repo …

The Nak Machine Learning Library

Chalk is a natural language processing library.

Reactive DDD with Akka

scalafx ensemble