Native non-blocking client for ZooKeeper with Finagle

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

Implement Hashids latest v1.0.0

Compositional, streaming I/O library for Scala

Jackson module 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

SBT plugin to ease the launch of Ammonite

An alternate webdriver implementation based on Scala, Akka and Spray

How hard could it be to replace SBT?

Apache Solr Client for Scala/Java

The official Riak Spark Connector for Apache Spark with Riak TS and Riak KV

Data interchange for the modern web + mobile stack.

Lift Integration with the Shiro security framework

Thin reactive framework to provide and consume REST services

ElasticSearch integration for Apache Spark

Scala idiomatic wrapper for RxJS