Compare software

OpenJDK vs ZuluFX: catalog facts
OpenJDK	ZuluFX
Best for: Developers who need a standard JDK to build and run Java applications	Best for: Java developers building or running JavaFX desktop applications
Free Free under the GPL; Oracle also sells a commercially licensed JDK built from the same code.	Free Free to download from Azul's website.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Reference implementation of the Java Platform Free production-ready builds for three desktop platforms All 3 strengths for OpenJDK Reference implementation of the Java Platform Free production-ready builds for three desktop platforms Open development with public source and proposals	JavaFX included, so no separate OpenJFX setup Builds for several Java LTS versions All 3 strengths for ZuluFX JavaFX included, so no separate OpenJFX setup Builds for several Java LTS versions Available for Linux, Windows and macOS
Oracle's OpenJDK builds are only updated for a short time per release Older versions such as JDK 17 need builds from other vendors for updates	Only useful for Java development or running JavaFX applications The download page lists many Azul builds, which can be confusing
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0 with Classpath Exception	License: GPL-2.0-with-classpath-exception
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for OpenJDK openjdk.org Catalog checked October 1, 2026	Official website Full listing and sources Sources for ZuluFX azul.com/downloads Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.