Flexible & Powerful Open Source
Multi-Protocol Messaging

Apache ActiveMQ® is the most popular open source, multi-protocol, Java-based message broker. It supports industry standard protocols so users get the benefits of client choices across a broad range of languages and platforms. Connect from clients written in JavaScript, C, C++, Python, .Net, and more. Integrate your multi-platform applications using the ubiquitous AMQP protocol. Exchange messages between your web applications using STOMP over websockets. Manage your IoT devices using MQTT. Support your existing JMS infrastructure and beyond. ActiveMQ offers the power and flexibility to support any messaging use-case.

ActiveMQ Artemis 2.35.0
Bug fix release. Junit Upgrade....more

Jun 16th, 2024

ActiveMQ Artemis 2.34.0
Hardening on mirroring, and bug fixes...more

Jun 3rd, 2024

ActiveMQ Classic 6.1.2 Release
Classic 6.1.2 is a maintanance release for ActiveMQ Classic, on the 6.1.x series....more

Apr 15th, 2024

There are currently two "flavors" of ActiveMQ available - the well-known "classic" broker and the "next generation" broker code-named Artemis. Once Artemis reaches a sufficient level of feature parity with the "Classic" code-base it will become the next major version of ActiveMQ. Initial migration documentation is available as well as a development roadmap for Artemis.

ActiveMQ Classic

Long established, endlessly pluggable architecture serving many generations of applications.

  • Jakarta 3.1, JMS 2.0, and JMS 1.1 with full client implementation including JNDI
  • High availability using shared storage
  • Familiar JMS-based addressing model
  • Network of brokers for distributing load
  • KahaDB & JDBC options for persistence
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ActiveMQ Artemis

High-performance, non-blocking architecture for the next generation of messaging applications.

  • JMS 1.1 & 2.0 + Jakarta Messaging 2.0 & 3.0 with full client implementations including JNDI
  • High availability using shared storage or network replication
  • Simple & powerful protocol agnostic addressing model
  • Flexible clustering for distributing load
  • Advanced journal implementations for low-latency persistence as well as JDBC
  • High feature parity with ActiveMQ Classic to ease migration
  • Asynchronous mirroring for disaster recovery
  • Data Driven Load Balance
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Enjoy the benefits of open source by contributing to a code-base, asking a question on one of our mailing lists, or reporting a bug or requesting a feature. When you particpate, we all win. That's the power of community. That's the power of open source.
Protect your data & Balance your Load

ActiveMQ provides many advanced features including message load-balancing and high-availability for your data. Multiple connected "master" brokers can dynamically respond to consumer demand by moving messages between the nodes in the background. Brokers can also be paired together in a master-slave configuration so that if a master fails then the slave takes over ensuring clients can get to their important data and eliminating costly downtime.

Easy Enterprise Integration Patterns

Enterprise Integration Patterns describe the various ways in which multiple applications generally interact and integrate with each other. Aysnchronous messaging is at the heart of this integration, and ActiveMQ makes it easy to leverage these patterns via Apache Camel routes deployed directly on the broker.

Flexible Deployment

ActiveMQ is most commonly deployed as a standalone process. This option isolates ActiveMQ from any particular application and provides maximum flexibility for resource allocation and management. However, ActiveMQ can be configured to have a very small footprint which makes it viable to embed it within your application. This option can provide an application with simple, powerful messaging semantics and also allow easy message exchange with other applications.

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