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

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.

A fault tolerant, protocol-agnostic RPC system

Your favorite language gets closer to bare metal.

Breeze is/was a numerical processing library for Scala.

Scala Scripting

Property-based testing for Scala

A tidy SQL-based DB access library for Scala developers. This library naturally wraps JDBC APIs and provides you easy-to-use APIs.

A testing tool for Scala and Java developers

Functional GraphQL library for Scala

a simple Scala CLI parsing library

A cohesive & pragmatic framework of FP centric Scala libraries

I know this because build.sbt knows this.

Storehaus is a library that makes it easy to work with asynchronous key value stores

Scala macro that produces JavaScript from Scala code.

Implementation of CSP constructions (Communication Sequence Process, i.e. go-like channels) in scala

Spray Slick Starter Stack

A template engine for Scala

API gateway with Akka HTTP

Write SQL in Scala

Implement Cross Cutting Concern using Aspect-Oriented Programming (AOP) in Scala

Easily compose microservices into a rich REST API