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Best In-Memory Databases in 2026

In-memory databases are designed for applications that work with data held in memory, and their operational and data capabilities vary. Compare persistence, deployment, high availability, and included memory, then consider SQL support, supported data models, and vector search.

  1. 01 Amazon ElastiCache

    It suits teams that need managed caching compatible with Valkey, Memcached, or Redis OSS, whether as a serverless cache or node-based cluster.

    From $0.09/mo Free plan Web · Windows · macOS · Linux
    9.4 Visit Specs
  2. 02 Aerospike Database
    Free plan Open source Web · Windows · macOS · Linux
    9.1 Visit Specs
  3. 03 Apache Geode

    Geode is aimed at teams building high-scale business applications that need low latency and high availability.

    Free plan Open source Windows · macOS · Linux · API
    8.9 Visit Specs
  4. 04 Apache Ignite

    It suits teams needing a self-hosted distributed SQL database for streaming, microservices state, sessions or feature stores.

    Free plan Open source Windows · macOS · Linux · API
    8.9 Visit Specs
  5. 05 SingleStore Helios

    Helios may suit teams running transactional and analytical workloads together or working with varied data types.

    From $0.99/mo Free plan Web · Windows · macOS · Linux
    8.8 Visit Specs
  6. 06 ALTIBASE

    A+ Edition is intended for startups, developers, and students using the database for development, testing, or education.

    Free plan Linux · Self-hosted
    8.2 Visit Specs
  7. 07 GridGain

    GridGain suits organisations needing scalable transactional, streaming, or analytical processing, including financial services, software, retail, telecommunications, online services, and healthcare.

    From $0.11/mo Free trial Windows · macOS · Linux · API
    8.2 Visit Specs
  8. 08 VoltDB

    VoltDB suits companies building or modernizing mission-critical applications, including in financial services, telecommunications, and enterprise technology.

    Free plan Open source Web · macOS · Linux · API
    8.2 Visit Specs
  9. 09 Dragonfly
    From $36/mo Free trial Linux · API · Self-hosted
    8.1 Visit Specs
  10. 10 Redis Insight

    Redis Insight suits developers who need GUI and CLI tools for working with Redis data across supported deployments.

    Free plan Web · Windows · macOS · Linux
    7.9 Visit Specs
  11. 11 eXtremeDB

    eXtremeDB is for developers working with embedded devices and applications who need in-memory, persistent, or hybrid storage.

    Free trial Windows · macOS · Linux · iOS
    7.8 Visit Specs
  12. 12 RaimaDB

    RaimaDB is aimed at teams building embedded, edge, IoT, or real-time applications.

    Free trial Web · Windows · macOS · Linux
    7.8 Visit Specs
  13. 13 DiceDB
    Free plan macOS · Linux · Self-hosted
    7.7 Visit Specs
  14. 14 Infinispan

    It suits developers building self-hosted or embedded applications that need distributed caching and search.

    Free plan Linux · API · Self-hosted
    7.6 Visit Specs
  15. 15 RonDB

    RonDB suits teams building real-time applications that need distributed storage, SQL access, or a feature-store database.

    Free plan Linux · API · Self-hosted
    7.6 Visit Specs
  16. 16 SAP HANA Cloud
    Free plan Web · Linux · API
    7.6 Visit Specs
  17. 17 ScaleOut In-Memory Database
    Free trial Windows · Linux · API · Self-hosted
    7.5 Visit Specs
  18. 18 Erlang Debugger

    It is for Erlang developers who need graphical process inspection, breakpoints, or remote-node debugging.

    Windows · macOS · Linux
    7.4 Visit Specs
  19. 19 KeyDB
    macOS · Linux · Self-hosted
    7.4 Visit Specs
  20. 20 Valkey

    Valkey suits developers and operators building caches, queues or database-backed applications that need clustering, replication or persistence.

    Free plan macOS · Linux · API · Self-hosted
    7.4 Visit Specs
  21. 21 Amazon MemoryDB
    Web · API
    7.3 Visit Specs
  22. 22 Tarantool DB
    macOS · Linux · API · Self-hosted
    6.8 Visit Specs
  23. 23 Couchbase Server
    6.2 Visit Specs
  24. 24 VMware Tanzu Platform

    Tanzu Platform is described for application and platform engineering teams needing shared governance and visibility.

    Web · API · Self-hosted
    6.2 Visit Specs
  25. 25 SAP Master Data Governance
    Web
    5.9 Visit Specs
How this list is ordered. Specifiction scores each tool on how fully its maker documents it, whether its prices are published, where the research puts it, the platforms it runs on and whether it can be tried for free (how we rank). Makers can also buy a numbered place (how Specifiction is paid for).

Free-plan availability and paid-from pricing provide further comparison points. VoltDB, Aerospike Database, and Amazon ElastiCache are among the products to assess. Consider the workload and environment you have in mind, and use the listed features to compare how each option handles data and deployment needs.

Compare Amazon ElastiCache and Aerospike Database Get a place on this list

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