Adopt the Proven Open-Source Java Framework for Event Sourcing

With over 70M downloads, Axon Framework is the most widely adopted open-source Java toolkit for building event-driven systems using CQRS and event sourcing.

Start Building with Axoniq →

Explore Docs →

Adopt the Proven Open-Source Java Framework for Event Sourcing

With over 70M downloads, Axon Framework is the most widely adopted open-source Java toolkit for building event-driven systems using CQRS and event sourcing.

Start Building with Axoniq →

Explore Docs →

Trusted by leading global banks, logistics giants, and high-growth software teams

building with Axon in open source and scaling with Axoniq in production.

Axon framework

3.5k

Trusted by leading global banks, logistics giants, and high-growth software teams

building with Axon in open source and scaling with Axoniq in production.

Axon framework

3.5k

Trusted by leading global banks, logistics giants, and high-growth software teams

building with Axon in open source and scaling with Axoniq in production.

Axon framework

3.5k

Everything You Need to Build

Reliable,
Event-Driven
Systems

Reliable, Event-Driven Systems

Developer-Loved by Design

Java-native with first-class support for DDD, CQRS, and event sourcing

Built-in command, event, and query buses, no boilerplate needed

Open source, battle-tested, and supported by thousands of devs globally

Try AF5 Now →

Add Event Store For Free

Axon Server handles routing, storage, and scalability out-of-the-box

Replayable event streams = instant time-travel debugging

Zero additional event streaming setup, no schema registries, and no extra glue code

Try it now →

From OSS to Enterprise Without Lock-In

Start free with Axon Framework, scale with AxonIQ Platform

Add observability, security, governance, and orchestration when you’re ready

No rewrite required, just grow when your use case demands it

Explore Platform Pricing →

Evolve Without Breaking Your System

Refactor domains, replay events, and add projections easily

Built-in support for upcasters and schema evolution

Zero-downtime deploys for complex domains

See How to Migrate →

Built to Solve What Other Frameworks Can’t

Deliver Complexity Without Chaos

Model, manage, and evolve domain logic cleanly — even at enterprise scale

Deliver Complexity Without Chaos

Model, manage, and evolve domain logic cleanly — even at enterprise scale

Deliver Complexity Without Chaos

Model, manage, and evolve domain logic cleanly — even at enterprise scale

Foundations for AI-Ready Architecture

Event-sourced systems that remember everything, enabling explainability and autonomy

Foundations for AI-Ready Architecture

Event-sourced systems that remember everything, enabling explainability and autonomy

Foundations for AI-Ready Architecture

Event-sourced systems that remember everything, enabling explainability and autonomy

Lower Risk, Higher Resilience

Every change is traceable, testable, and undoable by design

Lower Risk, Higher Resilience

Every change is traceable, testable, and undoable by design

Lower Risk, Higher Resilience

Every change is traceable, testable, and undoable by design

Build Systems That Outlive Teams

Durable architecture that preserves context through staff changes and strategy shifts

Build Systems That Outlive Teams

Durable architecture that preserves context through staff changes and strategy shifts

Build Systems That Outlive Teams

Durable architecture that preserves context through staff changes and strategy shifts

Join the Thousands of Developers

Already Building with Axon in Open Source

Start Building with Axon

Join the Thousands of Developers

Already Building with Axon in Open Source

Start Building with Axon

Join the Thousands of Developers

Already Building with Axon in Open Source

Start Building with Axon

Start Building with Axon