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Microsoft Build of OpenJDK vs ZuluFX: catalog facts
Microsoft Build of OpenJDK	ZuluFX
Best for: Java developers who want a free, long-term supported JDK	Best for: Java developers building or running JavaFX desktop applications
Free Free of charge and open source.	Free Free to download from Azul's website.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Long-term supported releases at no cost Builds for macOS, Linux and Windows All 3 strengths for Microsoft Build of OpenJDK Long-term supported releases at no cost Builds for macOS, Linux and Windows Patches are upstreamed to OpenJDK by default	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
One of many OpenJDK distributions with similar contents Support focus leans towards Microsoft's own ecosystem	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 not stated	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 Microsoft Build of OpenJDK microsoft.com/openjdk 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.