Compare software

Azul Zulu vs Amazon Corretto: catalog facts
Azul Zulu	Amazon Corretto
Best for: Developers who need a specific Java version installed on any desktop OS	Best for: Java developers and servers that need a supported, free JDK
Free The Zulu builds of OpenJDK are free to download from Azul.	Free Free, including long-term support.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Builds for every current long-term Java version, back to Java 8 Packages for Windows, macOS and Linux from one page All 3 strengths for Azul Zulu Builds for every current long-term Java version, back to Java 8 Packages for Windows, macOS and Linux from one page Based directly on OpenJDK	Free long-term support from Amazon Certified Java SE compatible All 4 strengths for Amazon Corretto Free long-term support from Amazon Certified Java SE compatible Quarterly security and performance updates Several Java versions from 8 to 27
A runtime and toolkit, with no graphical tools of its own Many vendors ship near-identical OpenJDK builds, so the choice is often about support	A JDK only; IDEs and build tools are separate Direction is set by Amazon rather than a community foundation
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0 with Classpath Exception	License: GPL-2.0-with-classpath-exception
Not stated if an account is needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for Azul Zulu azul.com/downloads Catalog checked October 2, 2026	Official website Full listing and sources Sources for Amazon Corretto aws.amazon.com/corretto Catalog checked September 24, 2026

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