# DragonflyDB vs Hazelcast

| Attribute | DragonflyDB | Hazelcast |
|---|---|---|
| **vioscaleAI score** | 56.7 (67% (medium)) | 60.7 (56% (medium)) |
| activity.commits_last_30d | 100 | 80 |
| adoption.dependent_repos | 0 | 10,433 |
| adoption.github_stars | 31,781 | 6,620 |
| adoption.package_downloads_weekly | - | 3,112 |
| content.faq | `[{"answer":"An in-memory data store delivering significantly higher throughput and memory efficiency than Redis through multi-threaded architecture, enabling cost-effective scaling with fewer infrastructure resources. It is indexed under Key-Value Stores.","source":"https://www.dragonflydb.io/guides/redis-on-azure-service-options-pricing-pros-and-cons","question":"What is DragonflyDB?","confidence":0.6},{"answer":"DragonflyDB offers a free tier, so you can start without paying. Paid plans start at $8 per GB per month. Pricing changes often, so verify at source before relying on it.","source":"https://www.dragonflydb.io","question":"Is DragonflyDB free?","confidence":0.6},{"answer":"DragonflyDB supports the web, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.dragonflydb.io/guides/redis-on-azure-service-options-pricing-pros-and-cons","question":"What platforms does DragonflyDB support?","confidence":0.6},{"answer":"Yes. DragonflyDB can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.dragonflydb.io/guides/redis-on-azure-service-options-pricing-pros-and-cons","question":"Can DragonflyDB be self-hosted?","confidence":0.6},{"answer":"We have confirmed 6 integrations for DragonflyDB, including GCP Marketplace, AWS, Google Cloud Platform, Feast, Airbyte and PostgreSQL. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.dragonflydb.io/guides/redis-on-azure-service-options-pricing-pros-and-cons","question":"What does DragonflyDB integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 and GDPR for DragonflyDB. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as DragonflyDB not holding them. Always confirm compliance directly before you rely on it.","source":"https://trust.dragonflydb.io","question":"What security certifications does DragonflyDB have?","confidence":0.7}]` | `[{"answer":"Hazelcast is a distributed data platform that provides real-time processing and continuous intelligence capabilities. It supports clustering and integrates with various frameworks and clients. It is indexed under Key-Value Stores.","source":"https://hazelcast.com","question":"What is Hazelcast?","confidence":0.6},{"answer":"Hazelcast supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://hazelcast.com","question":"What platforms does Hazelcast support?","confidence":0.6},{"answer":"Yes. Hazelcast can be deployed cloud / SaaS, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://hazelcast.com","question":"Can Hazelcast be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Hazelcast. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Hazelcast not holding them. Always confirm compliance directly before you rely on it.","source":"https://hazelcast.com/blog/health-information-privacy/","question":"What security certifications does Hazelcast have?","confidence":0.7},{"answer":"Yes. Hazelcast 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://www.npmjs.com/package/hazelcast-client","question":"Is Hazelcast open source?","confidence":0.85}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | A Redis-compatible in-memory database that uses multi-threaded processing to achieve significantly higher performance and lower operating costs compared to traditional alternatives, supporting pub/sub, streams, and advanced data structures. | A distributed, in-memory computing platform that combines caching, stream processing, and data integration to enable real-time applications with low-latency data access and instant decision-making. |
| features.capabilities | `{"clustering":"sharded","deployment":"self_hosted","consistency":"strong","persistence":"snapshot","eviction_ttl":true,"storage_tier":"in_memory","transactions":"multi_exec","licence_class":"source_available","wire_protocol":"resp","multi_threaded":true,"pubsub_streams":true,"data_structures":"rich_types","redis_api_compat":"full"}` | `{"clustering":"replicated","deployment":"self_hosted","autoscaling":true,"consistency":"strong","open_source":true,"persistence":"durable","eviction_ttl":true,"storage_tier":"in_memory","latency_class":"sub-second","pricing_model":"open-source-self-host","streaming_sql":true,"wire_protocol":"custom","pubsub_streams":true,"data_structures":"kv_only","deployment_model":"self-hosted","delivery_guarantee":"exactly-once","stateful_processing":true}` |
| integrations.count | 5 | 6 |
| integrations.list | `[{"name":"GCP Marketplace"},{"name":"AWS"},{"name":"Google Cloud Platform"},{"name":"Feast"},{"name":"Airbyte"},{"name":"PostgreSQL"},{"name":"AWS Marketplace","native":true,"direction":"inbound"},{"name":"S3","native":true,"direction":"outbound"},{"name":"Grafana","native":false,"category":"monitoring","direction":"outbound"},{"name":"Prometheus","native":true,"category":"monitoring","direction":"outbound"}]` | `[{"name":"Spring Integration"},{"name":"MongoDB"},{"name":"Kafka","native":true},{"name":"Hadoop","native":true},{"name":"S3","native":true},{"name":"RDBMS","native":true},{"name":"JMS","native":true},{"name":"Oracle Database","native":true,"category":"database","direction":"bidirectional"},{"name":"Microsoft SQL Server","native":true,"category":"database","direction":"bidirectional"},{"name":"JDBC","native":true,"category":"database","direction":"bidirectional"}]` |
| language.primary | C++ | Java |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true}` | `{"cli":true,"linux":true}` |
| pricing | `{"type":"subscription","plans":[{"free":false,"name":"Flex","summary":"$8/GB/month, starting at $36/month","features":["Fully-managed on AWS, GCP, or Azure","One-click provisioning","Horizontal + vertical scaling","Monitoring dashboard","Dragonfly team support"],"components":[{"kind":"per_unit","unit":"GB","amount":8,"period":"month","currency":"USD"}],"description":"Fully-managed Dragonfly service for teams that prefer a simple, self-serve solution","contactSales":false},{"free":false,"name":"Business","summary":"Starting at $2,000/month","features":["Bring your own cloud","Auto-scaling","SSO & MFA","Custom SLA","Dedicated support"],"components":[{"kind":"fixed","amount":2000,"period":"month","currency":"USD"}],"description":"Fully-managed Dragonfly service for teams that require advanced security, compliance, and support","contactSales":false},{"free":false,"name":"Enterprise","summary":"Contact for pricing","features":["Run anywhere","Custom instance types","White-glove migrations and tuning","Advanced security & compliance","Enterprise SLA & premium support"],"description":"Fully-managed Dragonfly service for large organizations that require air-gapped infrastructure and white-glove support","contactSales":true}],"summary":"From $8/GB/month (Flex), $2,000+/month (Business). Free trial with $100 credits.","currency":"USD","freeTier":true,"sourceUrl":"https://www.dragonflydb.io","retrievedAt":"2026-08-01T15:16:24.351Z","startingPrice":{"amount":8,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"quote","sourceUrl":"https://hazelcast.com","retrievedAt":"2026-08-03T21:11:26.502Z"}` |
| pricing.free_tier | yes | - |
| pricing.model | freemium | commercial |
| pricing.price_level | low | unknown |
| pricing.transparent | no | no |
| release.cadence_days | 21 | 15 |
| release.history | `[{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v2.0.2","date":"2026-10-07T21:47:04Z","type":"stable","version":"v2.0.2"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v2.0.0","date":"2026-09-16T10:29:28Z","type":"stable","version":"v2.0.0"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.40.2","date":"2026-09-03T08:58:14Z","type":"stable","version":"v1.40.2"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.40.1","date":"2026-08-06T06:54:05Z","type":"stable","version":"v1.40.1"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.40.0","date":"2026-08-04T04:46:07Z","type":"stable","version":"v1.40.0"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.39.0","date":"2026-06-09T10:38:57Z","type":"stable","version":"v1.39.0"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.38.1","date":"2026-04-28T08:01:45Z","type":"stable","version":"v1.38.1"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.38.0","date":"2026-04-14T07:04:14Z","type":"stable","version":"v1.38.0"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.37.2","date":"2026-03-26T07:49:14Z","type":"stable","version":"v1.37.2"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.37.0","date":"2026-02-23T10:50:51Z","type":"stable","version":"v1.37.0"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.36.0","date":"2026-01-07T11:23:34Z","type":"stable","version":"v1.36.0"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.35.1","date":"2025-11-25T16:20:39Z","type":"stable","version":"v1.35.1"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.34.2","date":"2025-10-14T16:04:28Z","type":"stable","version":"v1.34.2"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.34.1","date":"2025-09-18T19:50:39Z","type":"stable","version":"v1.34.1"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.34.0","date":"2025-09-17T23:33:06Z","type":"stable","version":"v1.34.0"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.33.1","date":"2025-08-21T10:21:59Z","type":"stable","version":"v1.33.1"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.33.0","date":"2025-08-19T07:10:02Z","type":"stable","version":"v1.33.0"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.32.0","date":"2025-08-04T03:27:23Z","type":"stable","version":"v1.32.0"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.31.2","date":"2025-07-16T06:16:00Z","type":"stable","version":"v1.31.2"},{"url":"https://github.com/dragonflydb/dragonfly/releases/tag/v1.31.1","date":"2025-07-14T12:57:45Z","type":"stable","version":"v1.31.1"}]` | `[{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.7.0","date":"2026-05-13T10:46:12Z","type":"stable","version":"v5.7.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.6.0","date":"2025-10-15T14:47:06Z","type":"stable","version":"v5.6.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.5.0","date":"2024-07-26T17:03:03Z","type":"stable","version":"v5.5.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.8","date":"2024-07-17T14:13:54Z","type":"stable","version":"v5.3.8"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.4.0","date":"2024-04-15T17:55:57Z","type":"stable","version":"v5.4.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.7","date":"2024-04-03T10:23:29Z","type":"stable","version":"v5.3.7"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.2.5","date":"2024-02-26T14:47:57Z","type":"stable","version":"v5.2.5"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.6","date":"2023-11-09T14:00:06Z","type":"stable","version":"v5.3.6"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.5","date":"2023-10-24T14:59:38Z","type":"stable","version":"v5.3.5"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.2","date":"2023-08-21T15:41:18Z","type":"stable","version":"v5.3.2"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.0.5","date":"2023-06-28T13:47:26Z","type":"stable","version":"v5.0.5"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.1.7","date":"2023-06-19T14:02:07Z","type":"stable","version":"v5.1.7"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.2.4","date":"2023-06-13T12:40:26Z","type":"stable","version":"v5.2.4"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.1","date":"2023-06-09T09:24:01Z","type":"stable","version":"v5.3.1"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v4.2.8","date":"2023-05-29T09:56:41Z","type":"stable","version":"v4.2.8"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.0","date":"2023-05-19T06:32:29Z","type":"stable","version":"v5.3.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.1.6","date":"2023-05-10T10:55:54Z","type":"stable","version":"v5.1.6"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.0-BETA-2","date":"2023-04-12T10:58:26Z","type":"stable","version":"v5.3.0-BETA-2"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.2.3","date":"2023-03-23T13:28:16Z","type":"stable","version":"v5.2.3"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.0-BETA-1","date":"2023-03-17T06:49:49Z","type":"stable","version":"v5.3.0-BETA-1"}]` |
| reliability.status_page | - | yes |
| security.gdpr | yes | yes |
| security.pci | yes | - |
| security.scorecard | 5.3 | 4.2 |
| security.soc2 | yes | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=softonic%2Fdragonfly&per_page=100","last_12m":0,"max_severity":null}` | `{"count":10,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.hazelcast%3Ahazelcast&per_page=100","last_12m":2,"max_severity":"CRITICAL"}` |

## Capabilities (Key-Value Stores)

| Capability | DragonflyDB | Hazelcast |
|---|:--:|:--:|
| **Storage** |  |  |
| Storage tier | In-memory | In-memory |
| Persistence | Snapshot (RDB) | Fully durable |
| Data structures | Rich types | KV-only |
| **Protocol** |  |  |
| Wire protocol | RESP (Redis) | Custom |
| **Distribution** |  |  |
| Clustering | Sharded | Replicated |
| Consistency | Strong | Strong |
| **Ops** |  |  |
| Eviction / TTL policies | ✓ | ✓ |
| Multi-threaded | ✓ | - |
| Pub/Sub / streams | ✓ | ✓ |
| Transactions / atomic ops | MULTI-EXEC | - |
| **Deployment** |  |  |
| Deployment | Self-hosted | Self-hosted |
| **Licensing** |  |  |
| Licence class | Source-available | - |
| **Compatibility** |  |  |
| Redis API compatibility | Full | - |

*Source: vioscaleAI. Generated 2026-10-16T19:04:42.648Z. "-" = undocumented, not absent.*