# RabbitMQ vs ZeroMQ

**Leader by vioscaleAI score:** RabbitMQ

| Attribute | RabbitMQ | ZeroMQ |
|---|---|---|
| **vioscaleAI score** | 66.5 (47% (low)) | 48.9 (58% (medium)) |
| activity.commits_last_30d | 100 | 0 |
| adoption.dependent_repos | 282 | 2,003 |
| adoption.github_stars | 13,917 | 11,016 |
| adoption.package_downloads_weekly | 2,820,361 | 23,226,788 |
| content.faq | `[{"answer":"A powerful, enterprise-grade open-source messaging and streaming broker that enables efficient, reliable and versatile communication for distributed microservices, real-time data, and IoT applications. It is indexed under Message Queues.","source":"https://www.rabbitmq.com","question":"What is RabbitMQ?","confidence":0.6},{"answer":"RabbitMQ is open source, so it can be self-hosted and used at no licence cost. It is released under the BSD-3-Clause licence. Paid editions are also offered: Tanzu RabbitMQ, priced on request. Pricing changes often, so verify at source before relying on it.","source":"https://www.rabbitmq.com","question":"Is RabbitMQ free to use?","confidence":0.6},{"answer":"RabbitMQ supports the web, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.rabbitmq.com","question":"What platforms does RabbitMQ support?","confidence":0.6},{"answer":"Yes. RabbitMQ can be deployed cloud / SaaS, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.rabbitmq.com","question":"Can RabbitMQ be self-hosted?","confidence":0.6},{"answer":"Yes. RabbitMQ is published under the BSD-3-Clause licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://pypi.org/pypi/pika/json","question":"Is RabbitMQ open source?","confidence":0.9}]` | `[{"answer":"ZeroMQ is a messaging library that enables asynchronous communication through socket abstractions, supporting multiple communication patterns, message subscriptions, and access to various transport protocols. It is indexed under Message Queues.","source":"https://zeromq.org","question":"What is ZeroMQ?","confidence":0.6},{"answer":"ZeroMQ is open source, so it can be self-hosted and used at no licence cost. It is released under the MPL-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://zeromq.org","question":"Is ZeroMQ free to use?","confidence":0.6},{"answer":"ZeroMQ supports Windows, macOS, Linux and Android. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://zeromq.org","question":"What platforms does ZeroMQ support?","confidence":0.6},{"answer":"Yes. ZeroMQ can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://zeromq.org","question":"Can ZeroMQ be self-hosted?","confidence":0.6},{"answer":"We have confirmed 11 integrations for ZeroMQ, including Microsoft, Samsung, AT&T, Spotify, Facebook, Digital Ocean, Auth0 and Bitcoin, plus 3 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://zeromq.org","question":"What does ZeroMQ integrate with?","confidence":0.6},{"answer":"Yes. ZeroMQ is published under the MPL-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/zeromq/libzmq","question":"Is ZeroMQ open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | An open-source message broker and streaming platform for reliable message exchange in distributed systems. Supports multiple standard protocols including AMQP, MQTT, and STOMP. | Enables programs to exchange information through sockets across multiple protocols and network types, with built-in support for various communication patterns such as broadcast, queue-based delivery, and request-response architectures |
| features.capabilities | `{"hosting":"both","ordering":"fifo","paradigm":"queue","protocol":"AMQP 1.0, MQTT 5.0, STOMP","message_replay":true,"persistent_log":true,"consumer_groups":true,"geo_replication":true,"managed_offering":true,"dead_letter_queue":true,"stream_processing":true,"delivery_guarantee":"at_least_once","horizontal_scaling":true}` | `{"hosting":"self","paradigm":"pubsub","protocol":"ZMTP/3.1","managed_offering":false,"horizontal_scaling":true}` |
| integrations.count | - | 11 |
| integrations.list | - | `[{"name":"Microsoft"},{"name":"Samsung"},{"name":"AT&T"},{"name":"Spotify"},{"name":"Facebook"},{"name":"Digital Ocean"},{"name":"Auth0"},{"name":"Bitcoin"},{"name":"Jupyter"},{"name":"Mongrel2"},{"name":"Jina"}]` |
| language.primary | JavaScript | C++ |
| license.spdx | BSD-3-Clause | MPL-2.0 |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true,"linux":true}` | `{"linux":true,"android":true,"windows":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Open Source"},{"free":false,"name":"Commercial","contactSales":true}],"freeTier":true,"sourceUrl":"https://www.rabbitmq.com","retrievedAt":"2026-10-13T15:19:03.045Z"}` | `{"type":"open_source","sourceUrl":"https://zeromq.org","retrievedAt":"2026-10-13T15:19:28.344Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | low | free |
| pricing.transparent | no | yes |
| release.cadence_days | 25 | 114 |
| release.history | `[{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.6","date":"2026-09-14T07:24:14Z","type":"stable","version":"v4.3.6"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.5","date":"2026-08-17T21:41:39Z","type":"stable","version":"v4.3.5"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.4","date":"2026-07-23T14:46:25Z","type":"stable","version":"v4.3.4"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.9","date":"2026-07-20T14:43:28Z","type":"stable","version":"v4.2.9"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.3","date":"2026-07-20T14:55:46Z","type":"stable","version":"v4.3.3"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.8","date":"2026-06-15T15:08:29Z","type":"stable","version":"v4.2.8"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.2","date":"2026-06-15T15:34:09Z","type":"stable","version":"v4.3.2"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.1","date":"2026-05-20T01:21:53Z","type":"stable","version":"v4.3.1"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.7","date":"2026-05-19T23:48:35Z","type":"stable","version":"v4.2.7"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.0","date":"2026-04-23T01:18:14Z","type":"stable","version":"v4.3.0"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6","date":"2026-04-23T00:54:49Z","type":"stable","version":"v4.2.6"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.0-rc.1","date":"2026-04-20T18:19:14Z","type":"prerelease","version":"v4.3.0-rc.1"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.0-rc.0","date":"2026-03-26T03:47:43Z","type":"prerelease","version":"v4.3.0-rc.0"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.5","date":"2026-03-17T00:29:33Z","type":"stable","version":"v4.2.5"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.4","date":"2026-02-17T01:44:57Z","type":"stable","version":"v4.2.4"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.3","date":"2026-01-22T03:57:50Z","type":"stable","version":"v4.2.3"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.1.8","date":"2026-01-22T03:48:39Z","type":"stable","version":"v4.1.8"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.2","date":"2025-12-15T18:25:36Z","type":"stable","version":"v4.2.2"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.1.7","date":"2025-12-15T18:10:15Z","type":"stable","version":"v4.1.7"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.1","date":"2025-11-17T02:47:15Z","type":"stable","version":"v4.2.1"}]` | `[{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.3.5","date":"2023-10-09T11:17:14Z","type":"stable","version":"v4.3.5"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.3.4","date":"2021-01-17T13:23:31Z","type":"stable","version":"v4.3.4"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.3.3","date":"2020-09-07T16:26:42Z","type":"stable","version":"v4.3.3"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.3.2","date":"2019-07-08T16:22:37Z","type":"stable","version":"v4.3.2"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.3.1","date":"2019-01-12T16:21:50Z","type":"stable","version":"v4.3.1"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.3.0","date":"2018-11-28T20:16:09Z","type":"stable","version":"v4.3.0"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.2.5","date":"2018-03-23T19:37:59Z","type":"stable","version":"v4.2.5"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.2.4","date":"2018-03-21T16:03:32Z","type":"stable","version":"v4.2.4"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.2.3","date":"2017-12-13T13:41:38Z","type":"stable","version":"v4.2.3"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.2.2","date":"2017-02-18T18:09:59Z","type":"stable","version":"v4.2.2"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.2.1","date":"2016-12-31T15:30:03Z","type":"stable","version":"v4.2.1"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.2.0","date":"2016-11-04T10:33:51Z","type":"stable","version":"v4.2.0"},{"url":"https://github.com/zeromq/libzmq/releases/tag/v4.2.0-rc1","date":"2016-11-01T15:31:54Z","type":"prerelease","version":"v4.2.0-rc1"}]` |
| security.disclosure_policy | yes | - |
| security.scorecard | 6.1 | 5.3 |
| security.trust_center | https://www.rabbitmq.com/security | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=hex&package_name=amqp_client&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=conda&package_name=zeromq&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Message Queues)

| Capability | RabbitMQ | ZeroMQ |
|---|:--:|:--:|
| **Core** |  |  |
| Messaging paradigm | Queue | Pub/sub |
| **Correctness** |  |  |
| Delivery guarantee | At-least-once | - |
| Ordering guarantee | FIFO | - |
| **Durability** |  |  |
| Durable replayable log | ✓ | - |
| Message replay / rewind | ✓ | - |
| **Interop** |  |  |
| Wire protocol | AMQP 1.0, MQTT 5.0, STOMP | ZMTP/3.1 |
| Kafka-protocol compatible | - | - |
| **Scale** |  |  |
| Partitioned horizontal scaling | ✓ | ✓ |
| Geo / cross-region replication | ✓ | - |
| **Consumption** |  |  |
| Consumer groups / competing consumers | ✓ | - |
| Dead-letter queue | ✓ | - |
| **Deployment** |  |  |
| Managed cloud offering exists | ✓ | ✗ |
| Hosting | Cloud + self-hosted | Self-hosted only |
| **Processing** |  |  |
| Built-in stream processing | ✓ | - |

*Source: vioscaleAI. Generated 2026-10-16T22:11:52.413Z. "-" = undocumented, not absent.*