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Apache 2.0 since 2009
Axon Framework is the only Java-based event sourcing framework that has stayed Apache 2.0 since 2009 — through every wave of open source relicensing in the industry. Unrestricted in production. No caveats.
What we commit to
The core never moves
org.axonframework is Apache 2.0. No exceptions. No rug-pulls. No relicensing.
Production use is the honest boundary
Commercial components are fully functional for evaluation and testing, but not for production use.
Commercial licenses sustain open source
When you buy an Axoniq commercial license, you fund the Apache 2.0 framework thousands of teams depend on.
The model
Axon Framework
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Axoniq Framework
Community
Total downloads across all releases
The most adopted event sourcing framework in the Java ecosystem. Used in banking, insurance, and government systems worldwide.
Years of Apache 2.0 commitment
Every major Java framework from that era has relicensed or gone dormant. Axon Framework hasn't done either.
GitHub stars and growing
An active community of contributors shipping pull requests, extensions, and production battle-tested patterns every week.
Is Axon Framework still open source?
What is the difference between Axon Framework and Axoniq Framework?
What happens to Axon Framework 4?
Can I use Axon Framework in production for free?
Can I use Axoniq Framework for free?
How do I know which components are Apache 2.0?
🥳
Accessibility
Smaller organizations under $10M revenue can be eligible to get Axoniq Framework on the Team plan at no charge.
Start building with Axon Framework
Apache 2.0. Free in production. No strings attached.
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