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BaseX vs SirixDB

BaseX: Lightweight, fast native XML database and XQuery 3.1/4.0 processor with a GUI. SirixDB: Embeddable bitemporal database that keeps every revision of JSON and XML resources queryable.

key differences

  • BaseX is primarily a XML database; SirixDB is document.
  • Transactions: BaseX offers limited ACID; SirixDB offers full.
  • Only BaseX has joins, full-text search, in-memory, role-based access, online schema changes.
  • Only SirixDB has time travel.

choose basex for

  • +XML transformation and querying pipelines
  • +Digital humanities and archival corpora
  • +Embedded XQuery processing in Java applications
  • +Small document-centric web services

best at · Content, Search, Scientific

choose sirixdb for

  • +Audit trails that must reconstruct any past state
  • +Versioned JSON or XML document storage
  • +Time-travel analytics over changing data
  • +Research and teaching on versioned storage engines

best at · Event sourcing, Content, Embedded

BaseXLightweight, fast native XML database and XQuery 3.1/4.0 processor with a GUI.
SirixDBEmbeddable bitemporal database that keeps every revision of JSON and XML resources queryable.
overview
Primary model
XML
Document
Also supports
Document, Search Engine
XML
Type
Database engine
Database engine
Status
Active
Active
Developer
BaseX GmbH
SirixDB open-source project (University of Konstanz origins)
First release
2007
2012
Latest version
12.4 (May 28, 2026)
1.0.0-beta7 (Jul 15, 2026)
License
Open source (permissive)BSD 3-Clause
Open source (permissive)BSD 3-Clause License
Free tier
✓
✓
popularity
WhichDB Score
17.5
6.0
Rank
#189
#370
GitHub stars
769
1.2K
Stack Overflow questions
499
–
scale & guarantees
Comfortable data size
Small (≤ 100 GB)
Small (≤ 100 GB)
Horizontal scaling
None
None
Multi-region
None
None
ACID
Limited
Full
Consistency
Strong
Strong
Schema
Schemaless
Schemaless
Architecture
Single node, Embedded, Client server, In memory
Embedded, Client server, Single node
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
XQuery 3.1/4.0, XPath, XQuery Full Text, XQuery Update, XSLT
JSONiq, XQuery
Client languages
Java, Python, C#, JavaScript, PHP, Ruby
Java, Kotlin
Best for
Content, Search, Scientific, Embedded
Event sourcing, Content, Embedded
Add more to this comparisonNot sure either fits? Try smart match

BaseX vs SirixDB: FAQ

What is the difference between BaseX and SirixDB?

BaseX: Lightweight, fast native XML database and XQuery 3.1/4.0 processor with a GUI. SirixDB: Embeddable bitemporal database that keeps every revision of JSON and XML resources queryable. BaseX is primarily a XML database; SirixDB is document. Transactions: BaseX offers limited ACID; SirixDB offers full. Only BaseX has joins, full-text search, in-memory, role-based access, online schema changes.

When should I choose BaseX over SirixDB?

Choose BaseX for XML transformation and querying pipelines; digital humanities and archival corpora; and embedded XQuery processing in Java applications. Choose SirixDB for audit trails that must reconstruct any past state, versioned JSON or XML document storage and time-travel analytics over changing data.

Is BaseX or SirixDB more popular?

BaseX ranks #189 on the WhichDB Score (17.5/100) and SirixDB ranks #370 (6.0/100). Popularity is not fit: check the requirements that matter for your project.

Are BaseX and SirixDB open source?

Yes. BaseX is open source. License: BSD 3-Clause. Yes. SirixDB is open source. License: BSD 3-Clause License.