Free and Open Source, Distributed, RESTful Search Engine

Apache Kafka - A distributed event streaming platform

APM, Application Performance Monitoring System

High Performance Inter-Thread Messaging Library

Zipkin is a distributed tracing system

The official home of the Presto distributed SQL query engine for big data

Apache Druid: a high performance real-time analytics database.

APM, (Application Performance Management) tool for large-scale distributed systems.

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

Apache Cassandra®

Flyway by Redgate • Database Migrations Made Easy.

Distributed and fault-tolerant realtime computation: stream processing, continuous computation, distributed RPC, and more

Free and open log management

A full-featured package manager and viewer for Android

The Physical Web: walk up and use anything

A scalable, distributed Time Series Database.

A tool to help eliminate NullPointerExceptions (NPEs) in your Java code with low build-time overhead

High performance non-blocking webserver

Hackpad is a web-based realtime wiki.

Small set of tools for JVM troublshooting, monitoring and profiling.

A fork of NewPipe that implements SponsorBlock and ReturnYouTubeDislike.

A system for distributing and managing secrets

Rest.li is a REST+JSON framework for building robust, scalable service architectures using dynamic discovery and simple asynchronous APIs.

Library for configuration management API

pure java git solution

A High Dynamic Range (HDR) Histogram

ZooKeeper client wrapper and rich ZooKeeper framework

📡 ☁️ 🎶Airsonic, a Free and Open Source community driven media server (fork of Subsonic and Libresonic)

Real Time communication library using Animated Gifs as a transport™