Help out your favorite open source projects and become a better developer while doing it.

Brings the popular ruby faker gem to Java

Annotation processor to create immutable objects and builders. Feels like Guava's immutable collections but for regular value objects. JSON, Jackson, Gson, JAX-RS integrations included

Backup Android SMS, MMS and call log to Gmail / Gcal / IMAP

A Reliable, Flexible, Fast and Powerful download engine.

Open source two-factor authentication for Android

A Swagger to AsciiDoc or Markdown converter to simplify the generation of an up-to-date RESTful API documentation by combining documentation that’s been hand-written with auto-generated API documentation.

A simple sound recording Android app implementing Material Design

Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc

Quiplash replacement

Lizzie - Leela Zero Interface

Shuttle Music Player

space station management/tycoon/trader game. made for fun and practice.

A java client library to access Exchange web services. The API works against Office 365 Exchange Online as well as on premises Exchange.

Custom Advancements is an easy to configure minecraft plugin where you can create your own advancements for your server. Your players can use the easy to use GUI to see the advancements and their progress and how to activate them!

A Java API for generating .java source files.

Thymeleaf integration module for Spring

Spring Session

A quickstart generator for Spring projects

A powerful open source test automation platform for Web Apps, Mobile Apps, and APIs. Build stable and reliable end-to-end tests @ DevOps speed.

Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.

🔥🔥🔥AI-driven database tool and SQL client, The hottest GUI client, supporting MySQL, Oracle, PostgreSQL, DB2, SQL Server, DB2, SQLite, H2, ClickHouse, and more.

The Official SendGrid Led, Community Driven Java API Library

Fluent Java HTTP client

K-9 Mail – Advanced Email for Android 📧

Cross-platform framework for building truly native mobile apps with Java or Kotlin. Write Once Run Anywhere support for iOS, Android, Desktop & Web.

📱 Nextcloud Android app

Spring HATEOAS - Library to support implementing representations for hyper-text driven REST web services.

Open-Source Web UI for Apache Kafka Management

OpenSearch SDK to build and run extensions

Eclipse Groovy Development Tools

A Java (NIO2) FileSystem Provider for Amazon AWS S3.

Spring Data Relational. Home of Spring Data JDBC and Spring Data R2DBC.

a fast, scalable, multi-language and extensible build system

Coverage-guided, in-process fuzzing for the JVM

This is the project website for the TEAMMATES feedback management tool for education

Java unlimited redefinition of classes at runtime.

A JavaScript checker and optimizer.

:coffee: Java bindings for Asciidoctor. Asciidoctor on the JVM!

:sparkler: Open scientific N-dimensional image processing :microscope:

Multi-platform transparent client-side encryption of your files in the cloud

A fast dependency injector for Android and Java.

Apache Hadoop

A private messenger for Android.

📱InAppBrowser for React Native (Android & iOS) 🤘

Main repository for GoCD - Continuous Delivery server

Core part of NewPipe

The next generation of tooling for Spring Boot, including support for Cloud Foundry manifest files, Concourse CI pipeline definitions, BOSH deployment manifests, and more... - Available for Eclipse, Visual Studio Code, and Theia

A Java serialization/deserialization library to convert Java Objects into JSON and back

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 8 and above, brought to you by Google.