Best In-Memory Databases in 2026
Updated
In-memory databases are worth comparing when your application depends on data held readily available in memory. Compared on persistence, deployment, high availability, and included memory, the entries also show SQL support, supported data models, and vector search. These criteria can help you connect data capabilities with the operational setup your team needs. Free-plan availability and paid-from pricing add cost context. Aerospike Database, Amazon ElastiCache, and Apache Geode are among the options shown. Weigh the listed features against your workload and environment, including which data models and query capabilities matter and how you need to deploy and maintain the database.
In-Memory Databases, one module each.A lit port is something its maker publishes; 18 of 18 with a known API signal have a public API.
- 01 Amazon ElastiCache API yesFREE yesDOCS 7.3$6/mo
- 02 SingleStore Helios API yesFREE yesDOCS 7.3$0.99/mo
- 03 VoltDB API yesFREE yesDOCS 7.3Free
- 04 Aerospike Database API yesFREE yesDOCS 7.2Free
- 05 Apache Geode API yesFREE yesDOCS 7.2Free
- 06 RonDB API yesFREE yesDOCS 7.2Free
- 07 Apache Ignite API yesFREE yesDOCS 7.1Free
- 08 Infinispan API yesFREE yesDOCS 7.1Free
- 09 Valkey API yesFREE yesDOCS 7.1Free
- 10 GridGain API yesFREE noDOCS 6.8$0.11/mo
- 11 SAP Customer Data Platform API yesFREE noDOCS 6.8$1.15/mo
- 12 Tarantool DB API yesDOCS 6.8
- 13 Dragonfly API yesFREE noDOCS 6.7$36/mo
- 14 RaimaDB API yesDOCS 6.7
- 15 VMware Tanzu Platform API yesDOCS 6.7
- 16 Amazon MemoryDB API yesDOCS 6.6
- 17 eXtremeDB API yesDOCS 6.6
- 18 ScaleOut In-Memory Database API yesDOCS 6.6
- 19 VMware Workstation Pro FREE yesDOCS 5.9Free
- 20 ALTIBASE FREE yesDOCS 5.8Free
- 21 DiceDB FREE yesDOCS 5.8Free
- 22 Redis Insight FREE yesDOCS 5.8Free
- 23 KeyDB DOCS 5.6
- 24 Erlang Debugger DOCS 5.5
- 25 Couchbase Server DOCS 5.1
Compare all 25 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Deployment | Data persistence |
|---|---|---|---|---|---|---|---|---|
| 1 | Amazon ElastiCache | 7.3 | Free plan | $6/mo | No | 6 /mo | ||
| 2 | SingleStore Helios | 7.3 | Free plan | $0.99/mo | Yes | |||
| 3 | VoltDB | 7.3 | Free plan | Free | No | both | Yes | |
| 4 | Aerospike Database | 7.2 | Free plan | Free | Yes | |||
| 5 | Apache Geode | 7.2 | Free plan | Free | Yes | self-hosted | Yes | |
| 6 | RonDB | 7.2 | Free plan | Free | both | Yes | ||
| 7 | Apache Ignite | 7.1 | Free plan | Free | ||||
| 8 | Infinispan | 7.1 | Free plan | Free | Yes | |||
| 9 | Valkey | 7.1 | Free plan | Free | ||||
| 10 | GridGain | 6.8 | No | $0.11/mo | No | both | Yes | |
| 11 | SAP Customer Data Platform | 6.8 | No | $1.15/mo | Yes | |||
| 12 | Tarantool DB | 6.8 | ||||||
| 13 | Dragonfly | 6.7 | No | $36/mo | No | 36 /mo | both | Yes |
| 14 | RaimaDB | 6.7 | No | |||||
| 15 | VMware Tanzu Platform | 6.7 | ||||||
| 16 | Amazon MemoryDB | 6.6 | No | |||||
| 17 | eXtremeDB | 6.6 | both | Yes | ||||
| 18 | ScaleOut In-Memory Database | 6.6 | No | self-hosted | ||||
| 19 | VMware Workstation Pro | 5.9 | Free plan | Free | ||||
| 20 | ALTIBASE | 5.8 | Free plan | Free | No | |||
| 21 | DiceDB | 5.8 | Free plan | Free | Yes | self-hosted | No | |
| 22 | Redis Insight | 5.8 | Free plan | Free | Yes | both | ||
| 23 | KeyDB | 5.6 | Yes | self-hosted | Yes | |||
| 24 | Erlang Debugger | 5.5 | ||||||
| 25 | Couchbase Server | 5.1 | Yes |
Is your platform on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.