Ontop vs TuringDB

Ontop is a rdf database; TuringDB is a property graph database. Ontop (2009, Apache-2.0, Java) ranks #18 this month; TuringDB (2025, BUSL-1.1, C++) ranks #39.

Attribute Ontop #18 ▲2 Strong TuringDB #39 ▼1 Growing
At a glance
Rank #18#39
Score 57.049.6
GitHub stars 1k188
Popularity 58.441.5
Activity 49.476.1
Community 65.650.5
Research 54.850.0
Fundamentals
Description A Virtual Knowledge Graph system that exposes relational databases as RDF knowledge graphs, translating SPARQL queries into SQL without moving data. Uses R2RML mappings and lightweight ontologies.An in-memory, column-oriented property graph database engine focused on analytical and read-intensive workloads over large graphs.
Vendor OntopicTuring Biosystems
Model RDFProperty Graph
Kind query-enginedatabase
Category EstablishedEmerging
First released 20092025
Status activeactive
License Apache-2.0BUSL-1.1
Written in JavaC++
Query languages SPARQLopenCypher
gdotv support nono

Feature scores — not surveyed for Ontop

Feature OntopTuringDB
Community & Business
Active development —✓
Commercial support —✓
Live community —✓
Open Source —·
Pricing —0.5
Trendiness —0.25
Deployment
Containerization —✓
Work as dedicated instance —✓
Work as embedded —✓
Testing in-memory version —✓
Platform
Operating on Linux —✓
Operating on Windows —·
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 —✓
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 —·