Best RedHat OpenJDK Alternatives & Competitors in 2025

OpenJDK is the free version of the Java development platform.

Open Source

The code for Java is open source and available at OpenJDK™.

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Liberica is a 100% open-source Java 13.0.1 implementation.

The Microsoft Build of OpenJDK is a new no-cost long-term supported distribution and Microsoft’s new way to collaborate and contribute to the Java ecosystem.

Open Source

Zulu is a professional DJ mixing software to mix and broadcast live music, audio and mp3s.

Amazon Corretto is a no-cost, multiplatform, production-ready distribution of the Open Java Development Kit (OpenJDK).

Oracle JDeveloper is a free integrated development environment that simplifies the development of Java EE-based composite applications and provides a complete end-to-end development for Oracle Fusion Middleware including SOA, WebCenter, Business Pro…

Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.

Xcode is Apple’s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.

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Eiffel is an object-oriented programming language.

NetBeans IDE 7.0. Develop desktop, mobile and web applications with Java, PHP, C/C++ and more. Runs on Windows, Linux, Mac OS X and Solaris. NetBeans IDE is open-source and free.

Open Source

A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible