Open source implementation of multi-sets (or bags) for Scala collection

Implement Hashids latest v1.0.0

Jackson module for Scala

Compositional, streaming I/O library for Scala

hip cats and git hubs

Sentries - For easy fault handling in Scala programs

Memcached client for Scala

Simple Scala-friendly front-end to SLF4J

OSGi dynamics made easy - A Scala DSL to master OSGi dynamics

An alternate webdriver implementation based on Scala, Akka and Spray

SBT plugin to ease the launch of Ammonite

Data interchange for the modern web + mobile stack.

How hard could it be to replace SBT?

Apache Solr Client for Scala/Java

Lift Integration with the Shiro security framework

Thin reactive framework to provide and consume REST services

Scala idiomatic wrapper for RxJS

ElasticSearch integration for Apache Spark

Sprest is a collection of libaries to make building REST services simpler using Spray.

An HBase backed Journal for Akka's experimental persistence / event-sourcing