Combine the power of Java with the freedom of open source -- choose JDK6, 7, 8, and 9

Zulu: certified builds of OpenJDK that can be deployed across multiple operating systems, containers, hypervisors and Cloud platforms. Choose Zulu Enterprise for cost-effective Java support.

Pure Java

Fully certified Java SE standard compliant.

No Strings Attached

Zulu is 100% open source and free to use and redistribute.

Use it Anywhere

Client, Server, Embedded, Cloud, or Virtual.

Professional Support

Get enterprise-quality support with Zulu Enterprise.

A Java platform that makes sense

Zulu is an enterprise quality, certified build of OpenJDK that can be deployed on multiple platforms. Zulu is free to download, use and redistribute. Support is available via Azul's Zulu Enterprise offering.

Zulu Enterprise Data Sheet

Deploy with Confidence

Zulu leverages all the latest advances in OpenJDK and support provided by its vibrant open source community. And you won't find yourself with a new toolbar or a modified search engine when you download Zulu - Just the JDK.

Download Zulu

No coding changes required

Zulu is built from the OpenJDK source, performs like Oracle HotSpot and is compliant with the Java SE standards for Java 9, 8, 7, 6 and newer releases as they become available. Azul even offers free Zulu extensions to ensure runtime compatibility with HotSpot.

Java Standards

Key Features & Benefits


Java 9, 8, 7, 6 and newer releases as they become available (See download page for details)

Supported Platforms

Windows, Linux, macOS, Cloud on Azure and AWS (See download page for details)


Zulu is verified compliant with the Java SE specifications using the OpenJDK Community Technology Compatibility Kit (TCK)

Commercial Compatibility Kit

Additional functionality beyond OpenJDK to help ensure compatibility in applications

Java for Docker

Zulu Dockerfiles make it easy to include fully supported open source Java in any stack comprised of other Dockerfiles

Zulu Enterprise

Enterprise-grade Java support with 10 year support lifetime, and our Java experts can help you resolve issues quickly

“The certification of OpenJDK builds by Azul provides an extra level of assurance to organizations looking to leverage the open source runtime.”

Stephen O'Grady
Principal Analyst

Zulu Enterprise Support Pricing

Zulu Enterprise is priced on a subscription basis based upon the number of servers (virtual or physical) running Java applications. Here's our pricing:

Max # of Supported Servers Price/year (Standard Support) Price/year (Premium Support)
25 $10,000 Not available
100 $28,750 $34,500
1,000 $86,250 $103,500
Unlimited $258,750 $310,500 

Your Azul Sales representative will provide pricing that matches your specific requirements and help you maximize the value of your Zulu® Enterprise Support subscription

Additional Zulu Resources

Zulu Enterprise Data Sheet

Key Zulu Features & Benefits

Worried About Java SE Compliance? Zulu is a Great Open Source Alternative

Supported Platforms


Discover Zulu Embedded

Zulu Embedded Data Sheet

Zulu Commercial Compatibility Kit

Zulu Cryptography Extension Kit

Zulu Community Forum

Azul Product Support Lifecycle

© Azul Systems, Inc. 2018 All rights reserved.