The Best Oracle Java Alternatives in 2026 – and How to Transition

Explore the best alternatives to Oracle Java in 2026 and how to switch with confidence. Reduce risk, cut costs, and take control of your Java strategy.

For many organisations, Oracle’s Java licensing model has become a tipping point. With rising costs, rigid licensing terms, and visibility risks, the need to explore alternative Java solutions is more urgent than ever.

The good news? Viable, enterprise-ready alternatives to Oracle Java are available and many organisations have already transitioned successfully.

This article explores the most widely adopted alternatives, how they compare, and how to plan a smooth, risk-free transition.

🔗 This article is part of our Java Licensing Series:

Why look beyond Oracle Java?

The shift to an employee-based licensing model has dramatically changed the economics of using Oracle Java. Even limited usage now requires licensing every employee, regardless of whether they use Java directly.

Coupled with Oracle’s visibility into usage through download tracking, update activity, and third-party software, many organisations are finding themselves exposed—and overpaying.

Alternatives offer a way out: significant cost savings, clear ownership boundaries, and reduced risk of unexpected licensing exposure.

Leading Java Alternatives in 2026

There is no one-size-fits-all solution. The right alternative will depend on your organisation’s size, technical needs, support requirements, and appetite for change.

Here are six of the most popular options:

1. OpenJDK (Open Java Development Kit)

The open-source reference implementation of Java
Free to use, modify, and distribute
Backed by a wide community and often used as a base by other vendors
May require third-party support for enterprise environments

Source: OpenJDK

2. Azul Zulu and Azul Platform Core

Commercial OpenJDK builds from Azul Systems
Offers both free and paid options with enterprise-grade support
Known for performance tuning and extended security update lifecycles

Sources: Open Source, Fully Supported OpenJDK | Azul Platform Core

3. Eclipse Temurin (formerly AdoptOpenJDK)

Maintained by the Eclipse Foundation’s Adoptium Working Group
Widely adopted in enterprise environments
Free with verified builds and robust quality assurance

Sources:

4. Amazon Corretto

A free, production-ready distribution of OpenJDK supported by AWS
Offers long-term support (LTS) and regular security updates
Optimised for cloud workloads, especially in AWS environments

Sources:

5. IBM Semeru Runtime

Certified OpenJDK build maintained by IBM
Available as free community or commercial editions
Backed by IBM enterprise-grade support
Comparable support pricing to Oracle in many cases

Sources:

6. Liberica JDK by BellSoft

Fully TCK-tested OpenJDK distribution
Available for multiple platforms, including embedded systems
Offers extended support and commercial features

Sources: Java Download | Java 8, Java 11, Java 17, Java 21, Java 24 – OpenJDK Builds for Linux, Windows & macOS

While the options above represent the most common replacements for Oracle Java in enterprise environments, GraalVM is a specialised runtime that serves a different purpose.

7. GraalVM

Advanced runtime developed by Oracle
Offers performance optimisations, multi-language support, and native image compilation
NOT a direct replacement for standard Java runtimes like OpenJDK or Java SE distributions
Primarily suited for specialised development needs and performance-focused environments

Sources:

How to Transition Away from Oracle Java

1. Conduct a Compatibility Assessment

Identify where Java is used across your organisation
Map dependencies on specific Java versions or Oracle-specific features
Test critical applications against target alternatives (especially GUI or legacy systems)

2. Define Governance and Policy

Standardise on one or two alternative distributions
Update internal documentation, procurement policies, and deployment practices
Train IT and development teams on support and update processes

3. Roll Out in Phases

Start with non-critical systems or lower-risk environments
Establish fallback plans if certain systems require longer migration timelines
Monitor performance, stability, and compatibility as you scale

4. Engage Licensing and Technical Expertise

Validate your strategy with independent guidance
Ensure Oracle Java is removed where appropriate—or isolated where necessary
Avoid triggering licensing issues through partial or mismanaged migrations

Final Thoughts

Switching from Oracle Java does not need to be disruptive. With the right preparation and support, many organisations are achieving both compliance peace of mind and significant cost savings by transitioning to trusted, open alternatives.

If your business is considering a move away from Oracle Java—or is unsure where to start—ITAA offers independent assessments and strategic licensing advice.

Download Our Oracle Java Licensing Guide

This guide provides a practical, experience-led overview of how Oracle Java licensing works, including what triggers cost exposure and the options available to reduce risk and spend.

What you will learn

Where Oracle Java may exist across your environment and how to identify it
What triggers licensing and how the employee-based model drives cost exposure
Where risk typically arises and how to assess your compliance position
Options to reduce cost, optimise licensing, or move to OpenJDK or alternatives

Access the Full Guide

Martijn Smit, Chief Revenue Officer CRO & Software Licensing Leader

Martijn has an extensive career in software licensing, specializing in Oracle licensing and working with manufacturers and wholesalers. As ITAA’s Chief Revenue Officer, he leads marketing, cross-selling, and strategic partnerships. Known for problem-solving, team leadership, and clear communication, Martijn drives growth and innovation within the company.