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ObjectDB vs Actian NoSQL (Versant)

ObjectDB: Commercial object database for Java that implements JPA and JDO natively, with no ORM layer. Actian NoSQL (Versant): Enterprise object database formerly known as Versant, sold by Actian for complex object models.

key differences

  • Actian NoSQL (Versant) is built for larger datasets (≤ 10 TB) than ObjectDB (≤ 100 GB).
  • Horizontal scaling is none in ObjectDB and manual in Actian NoSQL (Versant).
  • Only ObjectDB has joins.
  • Only Actian NoSQL (Versant) has online schema changes.

choose objectdb for

  • +Java desktop applications with complex object models
  • +JPA-based apps that want to avoid Hibernate tuning
  • +Embedded storage in Java tools

best at · Embedded, OLTP

choose versant-object-database for

  • +Telecom network inventory and management
  • +Defence and transport systems with deep object models
  • +Maintaining existing Versant installations

best at · OLTP, Embedded

ObjectDBCommercial object database for Java that implements JPA and JDO natively, with no ORM layer.
Actian NoSQL (Versant)Enterprise object database formerly known as Versant, sold by Actian for complex object models.
overview
Primary model
Object
Object
Also supports
–
–
Type
Database engine
Database engine
Status
Active
Active
Developer
ObjectDB Software
Actian (HCLSoftware)
First release
2003
1990
Latest version
2.9.5 (Mar 2, 2026)
–
License
ProprietaryObjectDB Licence (free edition with limits; commercial)
ProprietaryCommercial (Actian)
Free tier
✓
—
popularity
WhichDB Score
9.3
3.1
Rank
#315
#445
GitHub stars
–
–
Stack Overflow questions
105
–
scale & guarantees
Comfortable data size
Small (≤ 100 GB)
Medium (≤ 10 TB)
Horizontal scaling
None
Manual
Multi-region
None
None
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
Embedded, Client server
Client server, Distributed, Embedded
deployment
Self-hosted
✓
✓
Vendor-managed cloud
—
—
Serverless
—
—
Embedded
✓
✓
Edge
—
—
Clouds
–
–
capabilities
Transactions
✓
✓
Joins
✓
—
Secondary indexes
✓
✓
Full-text search
—
—
Vector search
—
—
Geospatial
—
—
JSON
—
—
Change data capture
—
—
Triggers
—
—
Stored procedures
—
—
Materialized views
—
—
TTL / expiry
—
—
Pub/Sub
—
—
Columnar storage
—
—
In-memory
—
—
Durable persistence
✓
✓
Compression
—
—
Encryption at rest
—
—
Role-based access
—
—
Time travel
—
—
Branching
—
—
Online schema changes
—
✓
Streaming ingest
—
—
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
JPQL, JDOQL
VQL (Versant Query Language), JPA (NoSQL JPA)
Client languages
Java
C++, Java, C#
Best for
Embedded, OLTP
OLTP, Embedded
Add more to this comparisonNot sure either fits? Try smart match

ObjectDB vs Actian NoSQL (Versant): FAQ

What is the difference between ObjectDB and Actian NoSQL (Versant)?

ObjectDB: Commercial object database for Java that implements JPA and JDO natively, with no ORM layer. Actian NoSQL (Versant): Enterprise object database formerly known as Versant, sold by Actian for complex object models. Actian NoSQL (Versant) is built for larger datasets (≤ 10 TB) than ObjectDB (≤ 100 GB). Horizontal scaling is none in ObjectDB and manual in Actian NoSQL (Versant). Only ObjectDB has joins.

When should I choose ObjectDB over Actian NoSQL (Versant)?

Choose ObjectDB for java desktop applications with complex object models, JPA-based apps that want to avoid Hibernate tuning and embedded storage in Java tools. Choose Actian NoSQL (Versant) for telecom network inventory and management; defence and transport systems with deep object models; and maintaining existing Versant installations.

Is ObjectDB or Actian NoSQL (Versant) more popular?

ObjectDB ranks #315 on the WhichDB Score (9.3/100) and Actian NoSQL (Versant) ranks #445 (3.1/100). Popularity is not fit: check the requirements that matter for your project.

Are ObjectDB and Actian NoSQL (Versant) open source?

No. ObjectDB is proprietary, closed-source software. License: ObjectDB Licence (free edition with limits; commercial). No. Actian NoSQL (Versant) is proprietary, closed-source software. License: Commercial (Actian).