sbt, the interactive build tool
Alpakka is a Reactive Enterprise Integration library for Java
A unified analytics engine for large-scale data processing
A high velocity web framework
Scala language server with rich IDE features
Distributed Tracing, Metrics and Context Propagation for applications
Property-based testing for Scala
Your shiny new Java/Scala build tool
Scala 2 compiler and standard library
The Scala 3 compiler, also known as Dotty
Tiny Scala high-performance, async web framework
Build concurrent, distributed, and resilient message-driven apps
The pure asynchronous runtime for Scala
Java persistence using JDO, JPA or REST
A Thrift parser/generator
Wonderful reusable code from Twitter
Reactive Microservices for the JVM
Lift Framework
Graphcool is an open-source backend development framework
Java-based scientific graphics
Scala libraries for building and consuming RESTful web services
A DSL that ease (shortens) the set up mockito based unit tests
Web development IDE in browser, supports Java, ruby, javascript...etc