RabbitMQ vs ActiveMQ: Classic, Artemis, Support Status and How to Choose

The short answer

Choose ActiveMQ when your applications are written to the JMS API; choose RabbitMQ when they are not. ActiveMQ is a Java broker built around JMS, and the name now covers two different brokers: ActiveMQ Classic, the original 5.x and 6.x line, and Artemis, the newer broker that became its own Apache project in November 2025. RabbitMQ runs on Erlang, uses AMQP exchanges and bindings for routing, and offers quorum queues and streams for replicated storage. For a new JMS workload, Artemis is the ActiveMQ to evaluate. For polyglot services and flexible routing, RabbitMQ is the more natural fit. If you run Classic today, check which line you are on: Apache marks every Classic series except 5.19.x and 6.3.x as end of life.

RabbitMQ vs ActiveMQ Classic vs Artemis at a glance

ActiveMQ is two brokers: Classic and Artemis

Most "RabbitMQ vs ActiveMQ" comparisons treat ActiveMQ as one product. It is not. ActiveMQ Classic is the broker most estates installed years ago: OpenWire as its native protocol, KahaDB for storage, and networks of brokers for distributing load. Artemis is a separate broker with its own Core wire protocol, an append-only journal, a protocol-agnostic addressing model and HA by shared storage or replication. In November 2025 the ActiveMQ project voted to establish Apache Artemis as a separate Apache project, and it now ships from artemis.apache.org.

The two are not drop-in replacements for each other at the configuration level, but Artemis accepts OpenWire connections, so existing Classic JMS clients can connect to an Artemis broker directly. That is what makes a staged move possible. Our ActiveMQ Classic to Artemis migration guide covers it step by step.

Which ActiveMQ versions are still supported?

Apache publishes a status for each Classic series. As of 7 October 2026:

Apache defines Active as supported and recommended for production, with security patches and bug fixes. Inactive means end of life: no further updates, and users are encouraged to upgrade. 6.0 and 6.1 are also listed as Inactive, and every 5.x series before 5.19 is past end of life. Artemis ships frequently on a single 2.x line, so the supported Artemis release is the latest one. See ActiveMQ vulnerabilities by version and Artemis vulnerabilities by version for what each line carries.

How RabbitMQ differs

RabbitMQ was built on AMQP 0-9-1 rather than JMS. Publishers send to exchanges, and bindings decide which queues receive a copy, so routing is configured in the broker rather than in destination names. AMQP 1.0 became a core protocol in RabbitMQ 4.0, and MQTT and STOMP come through plugins. Quorum queues replicate through Raft; classic queue mirroring was removed in 4.0. Streams add a replicated, replayable log. Java applications can still use JMS with RabbitMQ through the RabbitMQ JMS client, which implements the JMS specification on top of the RabbitMQ Java client.

RabbitMQ or ActiveMQ: which should you choose?

• Choose Artemis for new JMS or Jakarta Messaging applications, Java application servers that expect a JMS provider, or estates moving off Classic that want to keep the JMS API and OpenWire clients.
• Stay on ActiveMQ Classic if you are on 5.19.x or 6.3.x and it works. Both are active lines. If you are on 5.18 or older, plan an upgrade or a move to Artemis; until then you need a patch source.
• Choose RabbitMQ if your services are written in many languages, you want routing by pattern or header in the broker, you need streams for replay, or your team already runs RabbitMQ.
• Do not switch between RabbitMQ and ActiveMQ only to fix a support problem. Changing broker means changing clients, configuration and operations. Closing the support gap on the broker you already run is usually the smaller job.

Where OSSeva fits

OSSeva supports all three. OSSeva for ActiveMQ Classic backports security fixes to 5.15, 5.16, 5.17 and 5.18, the lines Apache no longer patches, so brokers stay on the version their integrations already work with. See ActiveMQ Classic extended support. OSSeva for ActiveMQ Artemis provides patched 2.x builds and covers Classic and Artemis together during a migration. OSSeva for RabbitMQ patches community RabbitMQ from 3.8 through 4.3, with the Erlang runtime underneath. OSSeva Assure for Classic includes a broker audit and a costed path to Artemis or RabbitMQ. One contract, priced per cluster. Book a discovery call for a quote. For other options, see our list of ActiveMQ support providers.

Frequently asked questions

RabbitMQ vs ActiveMQ Artemis: which is better?

For JMS applications, Artemis: it implements Jakarta Messaging 3.1, JMS 2.0 and 1.1 natively and accepts OpenWire from Classic clients. For services in many languages that want broker-side routing, RabbitMQ. Both replicate data for high availability, Artemis through shared storage or network replication and RabbitMQ through quorum queues and streams.

RabbitMQ vs ActiveMQ performance: which is faster?

It depends on the workload, persistence settings, acknowledgement mode and client. The storage designs differ: RabbitMQ quorum queues write to a Raft log, Classic writes to KahaDB, and Artemis writes to an append-only journal. Test with your own message sizes and durability requirements; published benchmarks rarely match a real configuration.

RabbitMQ or ActiveMQ for a new project?

If the project is Java and uses JMS, Artemis. Otherwise RabbitMQ is the more common choice for polyglot services. Avoid starting anything new on ActiveMQ Classic 5.x.

Is ActiveMQ Classic end of life?

Not entirely. Apache still lists 5.19.x and 6.3.x as Active. 5.18.x and older, and 6.0 to 6.2, are Inactive, which Apache defines as end of life with no further updates.

Can RabbitMQ use JMS?

Yes, through the RabbitMQ JMS client and the JMS Topic Exchange plugin. Applications that rely heavily on JMS-specific behaviour should be tested carefully before moving.

Is ActiveMQ Artemis the same as ActiveMQ?

No. Artemis started under the ActiveMQ project as its next-generation broker and became a separate Apache project in November 2025. ActiveMQ Classic continues as its own broker.