# Apache Kafka vs WarpStream

**Leader by vioscaleAI score:** WarpStream

| Attribute | Apache Kafka | WarpStream |
|---|---|---|
| **vioscaleAI score** | 57.2 (49% (low)) | 74.6 (62% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 1 | - |
| adoption.github_stars | 33,937 | - |
| adoption.package_downloads_weekly | 3,890,048 | - |
| content.faq | `[{"answer":"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. It is indexed under Message Queues.","source":"https://kafka.apache.org","question":"What is Apache Kafka?","confidence":0.6},{"answer":"Apache Kafka 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://kafka.apache.org","question":"Is Apache Kafka free to use?","confidence":0.6},{"answer":"Apache Kafka supports Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://kafka.apache.org","question":"What platforms does Apache Kafka support?","confidence":0.6},{"answer":"Yes. Apache Kafka can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://kafka.apache.org","question":"Can Apache Kafka be self-hosted?","confidence":0.6},{"answer":"We have confirmed 4 integrations for Apache Kafka, including Postgres, JMS, Elasticsearch and AWS S3. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://kafka.apache.org","question":"What does Apache Kafka integrate with?","confidence":0.6},{"answer":"Yes. Apache Kafka 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/kafka","question":"Is Apache Kafka open source?","confidence":0.95}]` | `[{"answer":"WarpStream is a Kafka-compatible streaming platform that eliminates local disks by using cloud object storage, enabling automatic scaling and reducing costs significantly compared to traditional Kafka. It maintains full protocol compatibility while simplifying operations through managed deployment in customer cloud accounts. It is indexed under Message Queues.","source":"https://www.warpstream.com/pricing","question":"What is WarpStream?","confidence":0.6},{"answer":"WarpStream offers a free tier, so you can start without paying. Paid plans start at $0.01. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.warpstream.com/pricing","question":"Is WarpStream free?","confidence":0.6},{"answer":"WarpStream supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.warpstream.com/pricing","question":"What platforms does WarpStream support?","confidence":0.6},{"answer":"Yes. WarpStream can be deployed cloud / SaaS, hybrid, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.warpstream.com/pricing","question":"Can WarpStream be self-hosted?","confidence":0.6},{"answer":"We have confirmed 17 integrations for WarpStream, including Apache Kafka, Bento, RisingWave, Grafana, Materialize, Snowflake, Schema Registry and Iceberg, plus 9 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.warpstream.com/pricing","question":"What does WarpStream integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 and ISO 27001 for WarpStream. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as WarpStream not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.warpstream.com/pricing","question":"What security certifications does WarpStream have?","confidence":0.6}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | An open-source system for capturing, storing, and processing continuous data flows at scale. Used to build real-time analytics, data connectors, and mission-critical applications. | WarpStream is a diskless, Kafka-protocol-compatible streaming platform designed to minimize data streaming costs. It offers managed cloud hosting or self-managed deployment, includes built-in autoscaling, cross-region replication, and embedded stream processing. |
| 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":"cloud","ordering":"per_partition","paradigm":"log_stream","protocol":"Kafka","message_replay":true,"persistent_log":true,"consumer_groups":true,"geo_replication":true,"kafka_compatible":true,"managed_offering":true,"stream_processing":true,"delivery_guarantee":"at_least_once","horizontal_scaling":true}` |
| integrations.count | 4 | 100 |
| integrations.list | `[{"name":"Postgres"},{"name":"JMS"},{"name":"Elasticsearch"},{"name":"AWS S3"}]` | `[{"name":"Apache Kafka"},{"name":"Bento"},{"name":"RisingWave"},{"name":"Grafana"},{"name":"Materialize"},{"name":"Snowflake"},{"name":"Schema Registry"},{"name":"Iceberg"},{"name":"Tigris"},{"name":"Protobuf"},{"name":"Avro"},{"name":"JSON"},{"name":"AWS S3","native":true,"category":"storage"},{"name":"GCP GCS","native":true,"category":"storage"},{"name":"Azure Blob Storage","native":true,"category":"storage"},{"name":"Amazon MSK","category":"messaging","direction":"bidirectional"},{"name":"Confluent Cloud","category":"messaging","direction":"bidirectional"}]` |
| language.primary | Java | - |
| license.spdx | Apache-2.0 | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"linux":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://kafka.apache.org","retrievedAt":"2026-10-13T13:46:57.642Z"}` | `{"type":"usage","plans":[{"free":false,"name":"Dev","summary":"$100/month base + metered write throughput and cluster minutes","features":["Core functionality","99.9% SLA","mTLS"],"commitment":"monthly","components":[{"kind":"fixed","amount":100,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":0.01,"currency":"USD"},{"per":{"qty":15,"unit":"min"},"kind":"metered","amount":0.0345,"currency":"USD"}],"description":"Development-grade cluster with basic functionality","contactSales":false,"includedLimits":{"retention":"7 days","partitions":"4,096"}},{"free":false,"name":"Fundamentals","summary":"$500/month base + metered usage","features":["Production functionality","99.9% SLA","Agent Groups","Cluster Recovery","mTLS","PrivateLink","Audit Logs","Schema Validation"],"commitment":"monthly","components":[{"kind":"fixed","amount":500,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":0.01,"currency":"USD"},{"per":{"qty":15,"unit":"min"},"kind":"metered","amount":0.1725,"currency":"USD"}],"description":"Production-grade cluster with standard SLA","contactSales":false,"includedLimits":{"partitions":"16,384"}},{"free":false,"name":"Pro","summary":"$1,500/month base + metered usage","features":["Advanced isolation","Multi-region replication","99.99% SLA","Lightning Topics","Topic Recovery","Lower Latency"],"commitment":"monthly","components":[{"kind":"fixed","amount":1500,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":0.01,"currency":"USD"},{"per":{"qty":15,"unit":"min"},"kind":"metered","amount":0.52083,"currency":"USD"}],"description":"Advanced cluster with high availability and multi-region replication","contactSales":false,"includedLimits":{"partitions":"50,000"}},{"free":false,"name":"Enterprise","summary":"Contact sales for pricing","features":["99.999% SLA","Dedicated Control Plane Cell","Multi-Region HA Replication"],"description":"Custom enterprise deployment","contactSales":true,"includedLimits":{"partitions":"200,000+"}}],"summary":"From $100/month base + metered write throughput ($0.01-$0.003/GiB, tiered by volume) and storage. Free $400 non-expiring credits with no card required.","currency":"USD","freeTier":true,"sourceUrl":"https://www.warpstream.com/pricing","retrievedAt":"2026-08-14T09:20:17.521Z","startingPrice":{"amount":0.01,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | unknown |
| pricing.transparent | - | no |
| reliability.sla_pct | - | 99.999 |
| reliability.status_page | - | yes |
| security.certifications | - | `[{"name":"SOC 2 Type I","level":"Type I","status":"active"},{"name":"SOC 2 Type II","level":"Type II","status":"active"}]` |
| security.iso27001 | - | yes |
| security.scorecard | 6.1 | - |
| 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}` | - |

## Capabilities (Message Queues)

| Capability | Apache Kafka | WarpStream |
|---|:--:|:--:|
| **Core** |  |  |
| Messaging paradigm | Pub/sub | Log / streaming |
| **Correctness** |  |  |
| Delivery guarantee | Exactly-once | At-least-once |
| Ordering guarantee | Per-partition | Per-partition |
| **Durability** |  |  |
| Durable replayable log | ✓ | ✓ |
| Message replay / rewind | ✓ | ✓ |
| **Interop** |  |  |
| Wire protocol | Binary over TCP (SSL/SASL for authentication/encryption) | Kafka |
| 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 | Cloud only |
| **Processing** |  |  |
| Built-in stream processing | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T20:14:36.007Z. "-" = undocumented, not absent.*