# Apache Kafka vs BullMQ

| Attribute | Apache Kafka | BullMQ |
|---|---|---|
| **Vioscale score** | 60.1 (51% (medium)) | 60.9 (55% (medium)) |
| activity.commits_last_30d | 100 | 100 |
| adoption.dependent_repos | 1 | 1,185 |
| adoption.github_stars | 33,629 | 9,333 |
| adoption.package_downloads_weekly | 5,508,093 | 8,237,365 |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | Apache Kafka is a free system for capturing, storing, and processing data streams in real time. It enables organizations to reliably move large volumes of data between applications and systems, with support for transformations, aggregations, and stateful processing. | 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. |
| features.capabilities | `{"hosting":"self","ordering":"per_partition","paradigm":"pubsub","protocol":"Binary over TCP (SSL/SASL for authentication/encryption)","message_replay":true,"persistent_log":true,"consumer_groups":true,"geo_replication":true,"kafka_compatible":true,"managed_offering":false,"stream_processing":true,"delivery_guarantee":"exactly_once","horizontal_scaling":true}` | `{"hosting":"self","paradigm":"job_queue","persistent_log":true,"managed_offering":false}` |
| integrations.count | 4 | - |
| integrations.list | `[{"name":"Postgres"},{"name":"JMS"},{"name":"Elasticsearch"},{"name":"AWS S3"}]` | - |
| language.primary | Java | TypeScript |
| license.spdx | Apache-2.0 | MIT |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"linux":true}` | - |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://kafka.apache.org","retrievedAt":"2026-08-14T11:04:16.831Z"}` | `{"type":"open_source","sourceUrl":"https://bullmq.io/","retrievedAt":"2026-08-14T08:33:58.453Z"}` |
| pricing.free_tier | yes | - |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| 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"}]` |
| reliability.status_page | - | yes |
| security.scorecard | 6.1 | 7.5 |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fapache%2Fkafka&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=bullmq&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Message Queues)

| Capability | Apache Kafka | BullMQ |
|---|:--:|:--:|
| **Core** |  |  |
| Messaging paradigm | Pub/sub | Job / task queue |
| **Correctness** |  |  |
| Delivery guarantee | Exactly-once | - |
| Ordering guarantee | Per-partition | - |
| **Durability** |  |  |
| Durable replayable log | ✓ | ✓ |
| Message replay / rewind | ✓ | - |
| **Interop** |  |  |
| Wire protocol | Binary over TCP (SSL/SASL for authentication/encryption) | - |
| 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 2026-09-01T14:46:21.507Z. "-" = undocumented, not absent.*