BlazeGraph vs Kuzu

BlazeGraph is a rdf database; Kuzu is a property graph database. BlazeGraph (2007, GPL-2.0, Java) ranks #78 this month; Kuzu (2022-11, MIT, C++) ranks #26.

Attribute BlazeGraph #78 = Growing Kuzu #26 ▲3 Strong
At a glance
Rank #78#26
Score 41.455.3
GitHub stars 9874k
Popularity 53.661.6
Activity 30.547.8
Community 34.758.6
Research 50.052.0
Fundamentals
Description An RDF database supporting billions of edges on a single machine. Uses an alternative approach to RDF reification that enables property graph-like capabilities. Notable as the backend for Wikidata's query service.An embedded property graph database built for fast analytical workloads, developed as the successor to Graphflow. Archived in October 2025 after acquisition by Apple. Forked as LadybugDB and Bighorn.
Vendor SYSTAPKuzu Inc (acquired by Apple)
Model RDFProperty Graph
Kind databaseembedded
Category EstablishedEmerging
First released 20072022-11
Status inactive — Last release in 2019. Project largely dormant, though still used by Wikidata.deprecated — Acquired by Apple in October 2025. Repository archived. Continued as LadybugDB and Bighorn forks.
License GPL-2.0MIT
Written in JavaC++
Query languages SPARQL, GremlinopenCypher
gdotv support yesyes

Feature scores — not surveyed for Kuzu

Feature BlazeGraphKuzu
Community & Business
Active development ·—
Commercial support ·—
Live community 0.25—
Open Source ✓—
Pricing ·—
Trendiness ✓—
Deployment
Containerization ·—
Work as dedicated instance ✓—
Work as embedded ✓—
Testing in-memory version ·—
Platform
Operating on Linux 0.75—
Operating on Windows 0.75—
SaaS offering ·—
Operations
Automatic updates ·—
Client side caching ·—
Data versioning support ·—
Live backups ·—
Distribution
Cluster Re-balancing ·—
Data Distribution ✓—
High-Availability ✓—
Query Distribution ✓—
Replication support ✓—
Developer Experience
Data types defined 0.5—
Logging/Auditing ✓—
Object-Graph Mapper ·—
Reactive programming ·—
Documentation up-to-date ✓—
Binary protocol ✓—
CLI ✓—
GUI ✓—
Data Model
Multi-database ·—
Graph-native data ✓—
REST API ✓—
Query Language ✓—
Transactions
Granular locking ·—
Multiple isolation levels ✓—
Read committed transaction ✓—
Transaction support ✓—
Schema & Security
Constraints ·—
Schema support ·—
Secondary indexes ✓—
Server side procedures ✓—
Triggers ·—
Authentication ·—
Authorization ·—
Data encryption ·—