# Apache Pulsar vs BullMQ

| Attribute | Apache Pulsar | BullMQ |
|---|---|---|
| **vioscaleAI score** | 60.2 (38% (low)) | 57.3 (62% (medium)) |
| activity.commits_last_30d | 100 | 100 |
| adoption.dependent_repos | 316 | 1,185 |
| adoption.github_stars | 15,343 | 9,503 |
| adoption.package_downloads_weekly | - | 9,701,809 |
| content.faq | `[{"answer":"A distributed messaging system built for cloud deployments that enables applications to reliably publish and consume messages—either individually or as continuous streams—with sub-10-millisecond latency, supporting millions of independent topics and large-scale streaming workloads. It is indexed under Message Queues.","source":"https://pulsar.apache.org","question":"What is Apache Pulsar?","confidence":0.6},{"answer":"Apache Pulsar is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://pulsar.apache.org","question":"Is Apache Pulsar free to use?","confidence":0.6},{"answer":"Apache Pulsar supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://pulsar.apache.org","question":"What platforms does Apache Pulsar support?","confidence":0.6},{"answer":"Yes. Apache Pulsar can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://pulsar.apache.org","question":"Can Apache Pulsar be self-hosted?","confidence":0.6},{"answer":"We have confirmed 27 integrations for Apache Pulsar, including Kafka, RabbitMQ, MongoDB, Cassandra, Elasticsearch, HBase, HDFS and InfluxDB, plus 19 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://pulsar.apache.org","question":"What does Apache Pulsar integrate with?","confidence":0.6},{"answer":"Yes. Apache Pulsar is published under the Apache-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/apache/pulsar","question":"Is Apache Pulsar open source?","confidence":0.95}]` | `[{"answer":"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. It is indexed under Message Queues.","source":"https://bullmq.io/","question":"What is BullMQ?","confidence":0.6},{"answer":"BullMQ is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://bullmq.io/","question":"Is BullMQ free to use?","confidence":0.6},{"answer":"Yes. BullMQ can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://bullmq.io/","question":"Can BullMQ be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 for BullMQ. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as BullMQ not holding them. Always confirm compliance directly before you rely on it.","source":"https://bullmq.io/","question":"What security certifications does BullMQ have?","confidence":0.48},{"answer":"Yes. BullMQ is published under the MIT 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/taskforcesh/bullmq","question":"Is BullMQ open source?","confidence":0.99}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | A message broker supporting both pub-sub and queue-based messaging patterns. It provides durable storage with strong ordering guarantees, horizontally scales to millions of topics and messages per second, and supports geo-replication for distributed deployments. | BullMQ is a background job and message queue system supporting Node.js, Python, .NET, Rust, Elixir, and other languages. It scales horizontally across unlimited workers, includes automatic job retry with backoff, dead-letter queues, and real-time monitoring. |
| features.capabilities | `{"hosting":"both","ordering":"per_partition","paradigm":"pubsub","protocol":"pulsar://","message_replay":true,"persistent_log":true,"consumer_groups":true,"geo_replication":true,"kafka_compatible":true,"stream_processing":true,"delivery_guarantee":"exactly_once","horizontal_scaling":true}` | `{"hosting":"self","paradigm":"job_queue","persistent_log":true,"managed_offering":false,"dead_letter_queue":true,"horizontal_scaling":true}` |
| integrations.count | 35 | - |
| integrations.list | `[{"name":"Kafka"},{"name":"RabbitMQ"},{"name":"MongoDB"},{"name":"Cassandra"},{"name":"Elasticsearch"},{"name":"HBase"},{"name":"HDFS"},{"name":"InfluxDB"},{"name":"Redis"},{"name":"Solr"},{"name":"DynamoDB"},{"name":"Kinesis"},{"name":"Azure Data Explorer"},{"name":"ClickHouse"},{"name":"PostgreSQL"},{"name":"MariaDB"},{"name":"SQLite"},{"name":"Debezium MySQL"},{"name":"Debezium PostgreSQL"},{"name":"Debezium MongoDB"},{"name":"Debezium Oracle"},{"name":"Debezium Microsoft SQL Server"},{"name":"Canal"},{"name":"Aerospike"},{"name":"Alluxio"},{"name":"NSQ"},{"name":"Netty"},{"name":"HTTP"},{"name":"File"},{"name":"Kafka Connect Adaptor","native":true,"direction":"bidirectional"},{"name":"MySQL","native":true}]` | - |
| language.primary | Java | TypeScript |
| license.spdx | Apache-2.0 | MIT |
| market.availability | - | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"mac":true,"web":true,"linux":true,"windows":true}` | - |
| pricing | `{"type":"open_source","sourceUrl":"https://pulsar.apache.org","retrievedAt":"2026-10-14T22:35:49.214Z"}` | `{"type":"subscription","plans":[{"free":false,"name":"Professional","summary":"$139/month","commitment":"monthly","components":[{"kind":"fixed","amount":139,"period":"month","currency":"USD"}],"contactSales":false}],"summary":"Free tier available; Professional tier from $139/month","currency":"USD","freeTier":true,"sourceUrl":"https://bullmq.io/","retrievedAt":"2026-10-13T11:15:28.907Z","startingPrice":{"amount":139,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | high |
| pricing.starting_price | - | `{"amount":139,"currency":"USD"}` |
| pricing.transparent | - | no |
| release.cadence_days | 3 | - |
| release.history | `[{"url":"https://github.com/apache/pulsar/releases/tag/v5.0.0","date":"2026-10-05T19:22:24Z","type":"stable","version":"v5.0.0"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.2.5","date":"2026-10-05T19:23:03Z","type":"stable","version":"v4.2.5"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.0.14","date":"2026-10-05T19:23:29Z","type":"stable","version":"v4.0.14"},{"url":"https://github.com/apache/pulsar/releases/tag/v5.0.0-M2","date":"2026-09-16T23:33:14Z","type":"prerelease","version":"v5.0.0-M2"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.2.4","date":"2026-08-03T09:19:30Z","type":"stable","version":"v4.2.4"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.0.13","date":"2026-08-03T09:19:06Z","type":"stable","version":"v4.0.13"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.2.3","date":"2026-07-06T08:46:50Z","type":"stable","version":"v4.2.3"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.0.12","date":"2026-07-06T08:46:18Z","type":"stable","version":"v4.0.12"},{"url":"https://github.com/apache/pulsar/releases/tag/v5.0.0-M1","date":"2026-06-23T14:11:26Z","type":"prerelease","version":"v5.0.0-M1"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.2.2","date":"2026-06-08T18:16:45Z","type":"stable","version":"v4.2.2"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.0.11","date":"2026-06-08T18:16:01Z","type":"stable","version":"v4.0.11"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.2.1","date":"2026-04-27T13:04:33Z","type":"stable","version":"v4.2.1"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.0.10","date":"2026-04-27T13:04:17Z","type":"stable","version":"v4.0.10"},{"url":"https://github.com/apache/pulsar/releases/tag/v3.0.17","date":"2026-04-27T13:03:58Z","type":"stable","version":"v3.0.17"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.2.0","date":"2026-03-31T21:12:26Z","type":"stable","version":"v4.2.0"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.1.3","date":"2026-02-19T19:48:49Z","type":"stable","version":"v4.1.3"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.0.9","date":"2026-02-19T19:48:13Z","type":"stable","version":"v4.0.9"},{"url":"https://github.com/apache/pulsar/releases/tag/v3.0.16","date":"2026-02-16T09:24:53Z","type":"stable","version":"v3.0.16"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.1.2","date":"2025-11-17T07:58:34Z","type":"stable","version":"v4.1.2"},{"url":"https://github.com/apache/pulsar/releases/tag/v4.0.8","date":"2025-11-17T07:58:06Z","type":"stable","version":"v4.0.8"}]` | `[{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.3.14","date":"2026-10-13T08:07:53Z","type":"stable","version":"v6.3.14"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.3.13","date":"2026-10-12T08:51:22Z","type":"stable","version":"v6.3.13"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vphp2.0.3","date":"2026-10-12T06:19:55Z","type":"stable","version":"vphp2.0.3"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vpy3.3.3","date":"2026-10-10T05:40:10Z","type":"stable","version":"vpy3.3.3"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.3.12","date":"2026-10-09T08:04:29Z","type":"stable","version":"v6.3.12"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.3.5","date":"2026-10-08T04:06:11Z","type":"stable","version":"vrs1.3.5"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vpy3.3.2","date":"2026-10-08T21:07:47Z","type":"stable","version":"vpy3.3.2"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vex2.3.0","date":"2026-10-08T21:39:22Z","type":"stable","version":"vex2.3.0"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vpy3.3.1","date":"2026-10-07T22:07:37Z","type":"stable","version":"vpy3.3.1"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.3.4","date":"2026-10-04T20:57:14Z","type":"stable","version":"vrs1.3.4"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.3.11","date":"2026-10-01T01:54:00Z","type":"stable","version":"v6.3.11"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vpy3.3.0","date":"2026-09-30T05:45:35Z","type":"stable","version":"vpy3.3.0"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.3.10","date":"2026-09-29T10:30:07Z","type":"stable","version":"v6.3.10"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vpy3.2.8","date":"2026-09-29T02:53:36Z","type":"stable","version":"vpy3.2.8"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.3.3","date":"2026-09-26T05:25:38Z","type":"stable","version":"vrs1.3.3"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/v6.3.9","date":"2026-09-25T18:57:39Z","type":"stable","version":"v6.3.9"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.3.2","date":"2026-09-25T03:25:22Z","type":"stable","version":"vrs1.3.2"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vpy3.2.7","date":"2026-09-25T04:06:50Z","type":"stable","version":"vpy3.2.7"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.3.1","date":"2026-09-24T04:20:30Z","type":"stable","version":"vrs1.3.1"},{"url":"https://github.com/taskforcesh/bullmq/releases/tag/vrs1.3.0","date":"2026-09-22T07:54:20Z","type":"stable","version":"vrs1.3.0"}]` |
| reliability.status_page | - | yes |
| security.certifications | - | `[{"name":"SOC 2 Type II","level":"Type II","status":"active"}]` |
| security.gdpr | - | yes |
| security.scorecard | 7.1 | 6.8 |
| security.soc2 | - | yes |
| security.trust_center | https://pulsar.apache.org/docs/5.0.x/security-athenz/ | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.apache.pulsar%3Apulsar-client-admin&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 Pulsar | 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 | pulsar:// | - |
| 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 2026-10-16T19:18:40.315Z. "-" = undocumented, not absent.*