RedHat OpenJDK logo

Best RedHat OpenJDK Alternatives ranked by AI · updated Aug 2026

Red Hat OpenJDK is a production-ready Java Development Kit distribution built from OpenJDK for developers and enterprises, particularly those using Red Hat platforms. It provides long-term support, security updates, and integration with Red Hat Enterprise Linux and other Red Hat products.

Developer: Red Hat Price: Free; commercial support via Red Hat subscriptions 🎯 developers.redhat.com/products/openjdk/overview

Top 6 RedHat OpenJDK alternatives

πŸ’‘ Pick it for Oracle-backed certification, support, and broad enterprise Java compatibility.

Oracle JDK is the official reference implementation of the Java SE Platform.

Pros

  • Strong support from Oracle
  • Advanced tools and features

Cons

  • Paid license for commercial use
2

Eclipse Temurin

Eclipse Adoptium

πŸ’‘ Pick it for a widely adopted, free OpenJDK build without vendor licensing costs.

Eclipse Temurin is a free, open-source OpenJDK distribution for desktop, server, edge, and compatible embedded systems. It is aimed at teams that...

Pros

  • No license fee for standard Java runtime use
  • Broad compatibility with mainstream Java libraries and tools
  • Regularly tested builds and an active open-source distribution project

Cons

  • Not designed for highly constrained microcontrollers
  • Does not provide JBlend-style device integration or Java ME APIs
  • Embedded architecture availability can be more limited than desktop platforms
3 Amazon Corretto logo

Amazon Corretto

Amazon Web Services

πŸ’‘ Pick it for free OpenJDK builds optimized for AWS-hosted Java applications.

Amazon Corretto is a no-cost, production-ready OpenJDK distribution for application developers and operations teams. It is maintained by AWS and is especially...

Pros

  • No-cost distribution for development and production use
  • Strong integration with AWS deployment and support workflows
  • Provides long-term support builds and regular security updates

Cons

  • AWS-centric documentation and tooling may be less relevant outside AWS
  • Fewer specialized JavaFX and embedded options than Liberica
  • Community visibility is lower than Temurin's in some ecosystems

Free; AWS support available through AWS services

4

Azul Zulu

Azul

πŸ’‘ Pick it for specialized Java support, long lifecycles, or broad platform coverage.

Azul Zulu is an OpenJDK distribution available for embedded and edge deployments as well as conventional systems. It suits teams that want...

Pros

  • Uses standard OpenJDK APIs and a broad Java ecosystem
  • Commercial support is available for production deployments
  • Better fit than JBlend for embedded Linux and edge computers

Cons

  • Generally requires more memory and hardware than Java ME runtimes
  • Not intended for the smallest microcontroller-class devices
  • Embedded platform and architecture coverage varies by release

Free community builds; commercial support from Azul

πŸ’‘ Pick it for Azure, Windows, or Microsoft-tooling integration at no JDK license cost.

Microsoft Build of OpenJDK is Microsoft's free OpenJDK distribution for developers and production applications. It targets common desktop, server, and cloud environments...

Pros

  • Free binaries with a clear Microsoft-maintained distribution channel
  • Fits well with Azure, Visual Studio Code, and Microsoft development workflows
  • Provides builds for common operating systems and architectures

Cons

  • Fewer specialized runtime and embedded options than Liberica
  • Less vendor-neutral for organizations avoiding major cloud providers
  • Community and third-party tooling breadth is smaller than Temurin's

Free; Microsoft support options vary by service

6 Liberica JDK logo

Liberica JDK

BellSoft

πŸ’‘ Pick it for JavaFX, embedded devices, or compact Java runtimes with optional commercial support.

Liberica JDK is a production-ready OpenJDK distribution for developers, enterprises, and embedded-device teams. It provides builds across major operating systems and architectures,...

Pros

  • Supports a broad range of platforms, including ARM and embedded environments
  • Offers optional JavaFX builds without requiring a separate distribution
  • Provides compact runtime variants for smaller deployments

Cons

  • Smaller community and ecosystem presence than Temurin or Oracle JDK
  • Some specialized builds and support services require commercial engagement
  • More distribution variants to evaluate than simpler OpenJDK packages

Free; commercial support available

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