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

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

A simple expressive web framework for java. Spark has a kotlin DSL https://github.com/perwendel/spark-kotlin

jOOQ is the best way to write SQL in Java

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

LWJGL is a Java library that enables cross-platform access to popular native APIs useful in the development of graphics (OpenGL, Vulkan, bgfx), audio (OpenAL, Opus), parallel computing (OpenCL, CUD…

H2 is an embeddable RDBMS written in Java.

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

SQLite JDBC Driver

Compiles Java bytecode to JavaScript, WebAssembly and C

Twitter4J is an open-source Java library for the Twitter API.

Java library for creating text-based GUIs

Provides examples and code snippets for the JGit Java Git implementation

KeePass implementation for android

A pure-Java Markdown processor based on a parboiled PEG parser supporting a number of extensions

Simple Java image-scaling library implementing Chris Campbell's incremental scaling algorithm as well as Java2D's "best-practices" image-scaling techniques.

🚀 Release projects quickly and easily with JReleaser

Emails at the heart of your business logic!

Auto updating launcher for JavaFX Applications

Official home of the JmDNS library

Java API for KeePass Password Databases - Read/Write 2.x (File versions 3 and 4), Read 1.x

YAML/Ansible support with Jinja2 tags / IntelliJ IDEA

A demo of using Java 9 modularization, and the JDK's new `jlink` tool, for zero-dependency deployments

Fossil SCM (http://www.fossil-scm.org/) plugin for IntelliJ IDEA

Java 8 XML Utilities