Apache NetBeans

Building modern, elegant and fast Swing applications

JavaFX mainline development

High quality UI controls to complement the core JavaFX distribution

A lightweight RCP framework for JavaFX applications.

A framework for easily creating a UI for application settings / preferences.

Style and Grammar Checker for 25+ Languages

A Java framework for creating sophisticated calendar views (JavaFX 8, 9, 10, and 11)

A Kotlin-based build system for the JVM.

Kotlin Plugin for Eclipse

IntelliJ IDEA & IntelliJ Platform

The Kotlin Programming Language.

Gradle plugin for JavaFX

Lightweight, robust, elegant syntax highlighting.

Allow runtime modification of JavaFX CSS

CommonMark/Markdown Java parser with source level AST. CommonMark 0.28, emulation of: pegdown, kramdown, markdown.pl, MultiMarkdown. With HTML to MD, MD to PDF, MD to DOCX conversion modules.

Java library for parsing and rendering CommonMark (Markdown)

Rich-text area for JavaFX

Official MiG Layout for Swing, SWT and JavaFX