VoltDB

Web · Mac · Linux · Self-hosted · API

Freedom report

Three barsScore 6.5

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

VoltDB is ranked #5 of 25 in in-memory databases on Freedom251. It runs on API, Linux, macOS, Self-hosted, Web. There is a free plan. A free trial is offered.

VoltDB plans and pricing

All plans

Developer Edition Free individual developers and early exploration · local or cloud · sample apps, tutorials and docs · no infrastructure required voltactivedata.com · 30 Sept 2026

Stream to Decision Trial Free Confluent users · Kafka stream connection · pre-built Docker templates · free to use for 30 days voltactivedata.com · 30 Sept 2026

Guided Engagement Not published defined use cases and production timelines · 12-week paid engagement · production deployment · customer success manager voltactivedata.com · 30 Sept 2026

Compared on in-memory databases

Free plan: No
Deployment model: both
Horizontal scaling: Yes
Multi-region deployment: Yes

Best VoltDB alternatives

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The record

Product role: Volt Active Data describes Volt as a real-time decisioning layer combining in-memory data processing, streaming ingest, business logic and AI integration.
Latency: The company says Volt is built to move from ingest to action in under 10 milliseconds.
Database model: VoltDB is a distributed, in-memory database that partitions data and stored procedures so queries can run in parallel while retaining ACID consistency.
Scaling: VoltDB can scale by adding nodes to a cluster, with partitioning automated from the schema.
Durability: VoltDB Enterprise Edition provides command logging, locally replicated partitions (K-safety) and wide-area database replication for durability and high availability.
Streaming integrations: Volt connects directly to Kafka or CDC streams and can expose decisions through SQL, REST or Kafka topics.
Deployment: Volt supports on-premises, cloud Kubernetes or VM-based deployments, and hybrid deployments.
Operating systems: Production VoltDB databases support Debian 12.11 or later, RHEL 8.8 or later, Rocky Linux 8.8 or later and Ubuntu 20.04, 22.04 or 24.04; macOS 13 or later is supported for development.
Security controls: VoltDB supports user authentication and authorization with roles, and TLS/SSL or Kerberos for communications; security is disabled by default.
Developer limitation: The Developer Edition is free to use but is not intended for production workloads.
Support: Volt provides a support portal for submitting and managing support tickets.
Target users: Volt says it works with companies building or modernizing mission-critical applications, including financial services, telecommunications and enterprise technology.
Current release: VoltDB release notes list version 15.3.1 dated September 15, 2026.
Founded: 2009
Price from: Free

Where it ranks on Freedom251

Best In-Memory Databases in 2026#5 of 25
Best Distributed SQL Databases in 2026#5 of 25

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Sources

voltactivedata.com/company/· checked 30 Sept 2026
docs.voltactivedata.com/AdminGuide/IntroChap.php· checked 30 Sept 2026
voltactivedata.com/data-products/· checked 30 Sept 2026
voltactivedata.com/partners/· checked 30 Sept 2026
docs.voltactivedata.com/AdminGuide/adminserversw.php· checked 30 Sept 2026
community.voltactivedata.com/v14docs/instructions/SecuringVoltDB.php· checked 30 Sept 2026
voltactivedata.com/file/quick-start-using-voltdb-docker/· checked 30 Sept 2026
voltactivedata.com/company/contact/· checked 30 Sept 2026
voltactivedata.com· checked 30 Sept 2026
university.voltactivedata.com/ReleaseNotes/· checked 30 Sept 2026
voltactivedata.com/products/voltdb/· checked 28 Sept 2026
voltactivedata.com/get-started/· checked 30 Sept 2026