# Apache Ignite vs Hazelcast

**Leader by vioscaleAI score:** Hazelcast

| Attribute | Apache Ignite | Hazelcast |
|---|---|---|
| **vioscaleAI score** | 44.6 (42% (low)) | 60.7 (56% (medium)) |
| activity.commits_last_30d | 70 | 80 |
| adoption.dependent_repos | 7 | 10,433 |
| adoption.github_stars | 5,084 | 6,620 |
| adoption.package_downloads_weekly | - | 3,112 |
| content.faq | `[{"answer":"Apache Ignite is an open-source distributed database that combines in-memory storage with persistent disk-based data management, supporting ACID transactions and SQL queries across distributed clusters. It is indexed under Key-Value Stores.","source":"https://ignite.apache.org","question":"What is Apache Ignite?","confidence":0.6},{"answer":"Apache Ignite 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://ignite.apache.org","question":"Is Apache Ignite free to use?","confidence":0.6},{"answer":"Apache Ignite supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://ignite.apache.org","question":"What platforms does Apache Ignite support?","confidence":0.6},{"answer":"Yes. Apache Ignite can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://ignite.apache.org","question":"Can Apache Ignite be self-hosted?","confidence":0.6},{"answer":"Yes. Apache Ignite 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/ignite","question":"Is Apache Ignite open source?","confidence":0.95}]` | `[{"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 | `{"self_hosted":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | Apache Ignite is an open-source distributed database that combines in-memory storage with persistent disk-based data management, supporting ACID transactions and SQL queries across distributed clusters. | 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":"durable","storage_tier":"in_memory","transactions":"multi_exec","licence_class":"permissive","wire_protocol":"custom","pubsub_streams":true,"data_structures":"rich_types"}` | `{"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 | 1 | 6 |
| integrations.list | `[{"name":"Apache Cassandra"}]` | `[{"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 | Java | Java |
| license.spdx | Apache-2.0 | Apache-2.0 |
| platform.support | `{"cli":true,"linux":true}` | `{"cli":true,"linux":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://ignite.apache.org","retrievedAt":"2026-08-13T22:59:11.180Z"}` | `{"type":"quote","sourceUrl":"https://hazelcast.com","retrievedAt":"2026-08-03T21:11:26.502Z"}` |
| pricing.model | open_source | commercial |
| pricing.price_level | free | unknown |
| pricing.transparent | - | no |
| release.cadence_days | - | 15 |
| release.history | - | `[{"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 | yes |
| security.gdpr | - | yes |
| security.scorecard | 5.7 | 4.2 |
| security.trust_center | https://ignite.apache.org/blog/tags/security/ | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=apache-ignite-client&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 | Apache Ignite | Hazelcast |
|---|:--:|:--:|
| **Storage** |  |  |
| Storage tier | In-memory | In-memory |
| Persistence | Fully durable | Fully durable |
| Data structures | Rich types | KV-only |
| **Protocol** |  |  |
| Wire protocol | Custom | 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 | Permissive OSS | - |
| **Compatibility** |  |  |
| Redis API compatibility | - | - |

*Source: vioscaleAI. Generated 2026-10-16T19:00:54.320Z. "-" = undocumented, not absent.*