Azul Zulu is unclaimed —

Azul Zulu

The most secure and stable build of OpenJDK·azulsystems.com

Free plan · Open source See pricing ↓

Azul Zulu is a 100% open source, fully TCK-verified build of OpenJDK that serves as a drop-in replacement for Oracle Java SE. It is free to download and use, receives free quarterly updates, and supports Java 8, 11, 17, 21, and 25 across Windows, Linux, macOS, and Solaris on 32- and 64-bit x86, Arm, and PPC architectures. It forms the open-source foundation on which Azul's commercially supported products, such as Azul Core, are built.

What it's for

Running Java applications as a free, open-source alternative to Oracle JDKMigrating off Oracle Java SE without code changesBuilding and running Java applications across multiple OS and CPU architectures

Features 9

100% open source builds of OpenJDK
Available for Windows, Linux, macOS, and Solaris
Drop-in replacement for Oracle Java SE
Free quarterly updates
Installable via package managers, Docker images, or direct downloads
Passes the Java SE Technology Compatibility Kit (TCK)
Released under GPLv2+CE license with no licensing fees
Supports 32- and 64-bit x86, Arm and PPC architectures
Supports Java 8, 11, 17, 21, and 25

At a glance

free tieropen source

TypeLibrary / SDK

DeploymentInstalled (local)

PlatformsWindows, macOS, Linux

Forenterprise Java teams, developers

CompanyAzul

Complianceself-reported

NERCEU CRAFIPS 140-2

Pricing

Azul Zulu builds of OpenJDK are free to download and use. Commercially supported, enhanced builds (Azul Core, Azul Prime) are sold separately on a per vCore/desktop basis with custom, quote-based pricing ('Contact sales for details').

Azul ZuluFree

Free to download and use.