
Azul Platform Core
Azul Platform Core is designed for enterprise, distribution (ISV), and embedded (OEM) use cases. It provides certified OpenJDK builds, Azul Zulu Builds of OpenJDK (Azul Zulu), with tight security and the cost efficiencies you need to run today’s business–critical, Java-based services. These builds are free to use and a drop-in replacement for any other OpenJDK distribution.
Azul Platform Core Benefits
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More Trust: Chosen by leading global brands, Azul Platform Core offers engineering support and 100% open-source builds that are Java SE compliant and TCK verified.
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More Value: Azul Platform Core is a one-to-one replacement for Oracle Java SE with the most architectures, package types, and configurations options compared to other OpenJDK providers.
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More Security: Azul Platform Core delivers quarterly stabilized security updates for rapid deployment into production, backed by an industry-leading support SLA.

For all commercial info, check Azul Platform Core on our website.
Azul Zulu Builds of OpenJDK
Azul Zulu Builds of OpenJDK (Azul Zulu) are open source, TCK-tested and certified builds of OpenJDK. Azul Zulu is available for a wide range of hardware platforms and operating systems.
The Azul Zulu Documentation includes release notes, an installation guide, and third-party licenses. Here you can find everything you need to know to successfully install and manage Zulu.
Difference with Azul Zing Builds of OpenJDK (Azul Zing)
Azul Zulu and Azul Zing are both Java runtimes provided by Azul Systems, but have a different focus:
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Azul Zulu is a freely available build of OpenJDK. It is designed to be a reliable and secure Java runtime for general-purpose use. It’s also a one-to-one replacement for Oracle Java SE with the most architectures, package types, and configuration options compared to other OpenJDK providers. Azul Zulu is part of Azul Platform Core, a commercial solution, offering engineering support and fast security updates.
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Azul Zing is a commercial JVM, based on OpenJDK, optimized for low-latency and high-performance applications. It includes features like the C4 garbage collector, a generational pauseless garbage collector, and Falcon, an improved compiler generating high performance code. This makes Azul Zing suitable for real-time and mission-critical applications. Azul Zing is part of Azul Platform Prime, a commercial solution, only available for free for evaluation.