# Apache Kafka vs Confluent Cloud

**Leader by Vioscale score:** Confluent Cloud

| Attribute | Apache Kafka | Confluent Cloud |
|---|---|---|
| **Vioscale score** | 60.1 (51% (medium)) | 90.5 (72% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 1 | - |
| adoption.github_stars | 33,629 | - |
| adoption.package_downloads_weekly | 5,508,093 | - |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"hybrid":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. | Confluent Cloud is a fully managed Apache Kafka service enabling organizations to stream high-volume, low-latency events between systems in real-time. It eliminates operational overhead through automatic scaling, multi-region replication, and costs significantly less than self-managed Kafka deployments. |
| 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":"pubsub","protocol":"Kafka protocol, REST API","message_replay":true,"persistent_log":true,"consumer_groups":true,"geo_replication":true,"kafka_compatible":true,"managed_offering":true,"stream_processing":true,"horizontal_scaling":true}` |
| integrations.count | 4 | 130 |
| integrations.list | `[{"name":"Postgres"},{"name":"JMS"},{"name":"Elasticsearch"},{"name":"AWS S3"}]` | `[{"name":"Salesforce"},{"name":"Google Ads"},{"name":"Google Analytics"},{"name":"Hotjar"},{"name":"Quickbooks"},{"name":"MySQL"},{"name":"Apache Flink"},{"name":"Schema Registry"},{"name":"Apache Iceberg"},{"name":"Delta Lake"}]` |
| language.primary | Java | - |
| license.spdx | Apache-2.0 | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"US","primaryMarkets":["US","GB"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"linux":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://kafka.apache.org","retrievedAt":"2026-08-14T11:04:16.831Z"}` | `{"type":"usage","plans":[{"free":true,"name":"Basic","summary":"Free tier with $400 credit for 30 days","description":"Getting started with data streaming","contactSales":false},{"free":false,"name":"Standard","summary":"Pay-as-you-go","features":["infinite storage","audit logs","20%+ throughput savings"],"description":"Production-ready data streaming with advanced features","contactSales":false},{"free":false,"name":"Enterprise","summary":"Pay-as-you-go","features":["private networking","autoscaling to GBps+ throughput","32%+ throughput savings"],"description":"Mission-critical workloads with maximum scale and security","contactSales":false}],"summary":"Usage-based pay-as-you-go pricing with free tier option","currency":"USD","freeTier":true,"sourceUrl":"https://www.confluent.io/fr-fr/pricing/cost-estimator/","retrievedAt":"2026-08-14T08:33:56.886Z","freeTrialDays":30,"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | low |
| pricing.transparent | - | yes |
| reliability.sla_pct | - | 99.99 |
| reliability.status_page | - | yes |
| security.disclosure_policy | - | yes |
| security.fedramp | - | yes |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.pci | - | 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 | Confluent Cloud |
|---|:--:|:--:|
| **Core** |  |  |
| Messaging paradigm | Pub/sub | Pub/sub |
| **Correctness** |  |  |
| Delivery guarantee | Exactly-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 protocol, REST API |
| 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: Vioscale. Generated 2026-09-01T16:35:14.627Z. "-" = undocumented, not absent.*