# BullMQ vs ZeroMQ

| Attribute | BullMQ | ZeroMQ |
|---|---|---|
| **Vioscale score** | 60.9 (55% (medium)) | 59.6 (48% (low)) |
| activity.commits_last_30d | 100 | 19 |
| adoption.dependent_repos | 1,185 | 2,003 |
| adoption.github_stars | 9,333 | 10,972 |
| adoption.package_downloads_weekly | 8,237,365 | 25,005,888 |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | An open source system for queueing and processing background tasks using Redis as the data store, with support for Node.js, Python, Rust, Elixir, and PHP applications. | ZeroMQ is a messaging library that enables asynchronous communication through socket abstractions, supporting multiple communication patterns, message subscriptions, and access to various transport protocols. |
| features.capabilities | `{"hosting":"self","paradigm":"job_queue","persistent_log":true,"managed_offering":false}` | `{"hosting":"self","paradigm":"pubsub","protocol":"ZMTP/3.1","managed_offering":false}` |
| 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 | TypeScript | C++ |
| license.spdx | MIT | MPL-2.0 |
| platform.support | - | `{"mac":true,"linux":true,"android":true,"windows":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://bullmq.io/","retrievedAt":"2026-08-14T08:33:58.453Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://zeromq.org","retrievedAt":"2026-08-14T11:07:53.298Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | - | 114 |
| release.history | `[{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.3.0","date":"2026-08-26T16:40:29Z","type":"stable","version":"v6.3.0"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vex2.2.0","date":"2026-08-26T16:42:21Z","type":"stable","version":"vex2.2.0"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.2.2","date":"2026-08-25T20:30:33Z","type":"stable","version":"v6.2.2"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.2.1","date":"2026-08-25T07:11:23Z","type":"stable","version":"v6.2.1"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.2.7","date":"2026-08-25T20:34:22Z","type":"stable","version":"vrs1.2.7"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vpy3.0.6","date":"2026-08-25T20:31:43Z","type":"stable","version":"vpy3.0.6"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vpy3.0.5","date":"2026-08-25T02:38:59Z","type":"stable","version":"vpy3.0.5"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vnet1.1.1","date":"2026-08-25T20:35:42Z","type":"stable","version":"vnet1.1.1"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vex2.1.3","date":"2026-08-25T20:33:24Z","type":"stable","version":"vex2.1.3"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.2.6","date":"2026-08-23T04:34:15Z","type":"stable","version":"vrs1.2.6"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.2.0","date":"2026-08-21T05:16:10Z","type":"stable","version":"v6.2.0"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.1.2","date":"2026-08-16T08:08:13Z","type":"stable","version":"v6.1.2"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.2.5","date":"2026-08-15T04:26:34Z","type":"stable","version":"vrs1.2.5"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vex2.1.2","date":"2026-08-15T19:44:26Z","type":"stable","version":"vex2.1.2"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vex2.1.1","date":"2026-08-15T04:25:36Z","type":"stable","version":"vex2.1.1"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.1.1","date":"2026-08-14T03:26:07Z","type":"stable","version":"v6.1.1"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.2.4","date":"2026-08-13T04:42:57Z","type":"stable","version":"vrs1.2.4"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.1.0","date":"2026-08-12T04:03:20Z","type":"stable","version":"v6.1.0"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vnet1.1.0","date":"2026-08-12T19:30:15Z","type":"stable","version":"vnet1.1.0"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vex2.1.0","date":"2026-08-12T19:29:27Z","type":"stable","version":"vex2.1.0"}]` | `[{"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"}]` |
| reliability.status_page | yes | - |
| security.scorecard | 7.5 | 5.7 |
| security.soc2 | yes | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=bullmq&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 | BullMQ | ZeroMQ |
|---|:--:|:--:|
| **Core** |  |  |
| Messaging paradigm | Job / task queue | Pub/sub |
| **Correctness** |  |  |
| Delivery guarantee | - | - |
| Ordering guarantee | - | - |
| **Durability** |  |  |
| Durable replayable log | ✓ | - |
| Message replay / rewind | - | - |
| **Interop** |  |  |
| Wire protocol | - | 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 | Self-hosted only | Self-hosted only |
| **Processing** |  |  |
| Built-in stream processing | - | - |

*Source: Vioscale. Generated 2026-09-01T16:46:51.994Z. "-" = undocumented, not absent.*