fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.

Generate TypeScript definitions from Kotlin/Java/JVM classes

mocking library for Kotlin

Portable Text is a JSON based rich text specification for modern content editing platforms.

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

Non-blocking, ultra-fast Scala Redis client built on top of Akka IO.

Modern Load Testing as Code

Module that adds support for serialization/deserialization of Kotlin (http://kotlinlang.org) classes and data classes.

A collections of extension functions to make the JVM Future, CompletableFuture, ListenableFuture API more functional and Kotlin like.

Non-blocking, Reactive Redis driver for Scala (with Sentinel support)

It is a Chrome extension for printing JSON and JSONP.

Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events

JWT support for Scala. Bonus extensions for Play, Play JSON, Json4s, Circe, uPickle, Spray and Argonaut

IntelliJ IDEA & IntelliJ Platform

Distributed Tracing, Metrics and Context Propagation for applications running on the JVM

A constant throughput, correct latency recording variant of wrk

A sbt plugin for creating distributable Scala packages.

Production-Grade Container Scheduling and Management

A docker-compose stack for Prometheus monitoring

Akka Http directives implementing the CORS specifications defined by W3C

Modern HTTP benchmarking tool

The Streaming-first HTTP server/module of Akka

Export from an Elasticsearch into a CSV file

🔍 Elasticsearch Scala Client - Reactive, Non Blocking, Type Safe, HTTP Client

Alpakka Kafka connector - Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

Logback JSON encoder and appenders

Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

Apache Kafka - A distributed event streaming platform

光 HikariCP・A solid, high-performance, JDBC connection pool at last.