NodeDB vs Ontop
NodeDB is a multiple database; Ontop is a rdf database. NodeDB (2026-04, BUSL-1.1, Rust) ranks #96 this month; Ontop (2009, Apache-2.0, Java) ranks #18.
| Attribute | NodeDB | Ontop |
|---|---|---|
| At a glance | ||
| Rank | #96 | #18 |
| Score | 37.9 | 57.0 |
| GitHub stars | 240 | 1k |
| Popularity | 41.7 | 58.4 |
| Activity | 51.5 | 49.4 |
| Community | 54.0 | 65.6 |
| Research | 50.0 | 54.8 |
| Fundamentals | ||
| Description | A multi-model database written in Rust that runs document, key-value, columnar, timeseries, spatial, vector, and array engines in a single binary over shared storage, with graph and full-text search as cross-engine overlays on any collection. Its graph overlay uses a CSR adjacency index with 13 built-in algorithms and a Cypher-subset MATCH syntax, and fuses graph traversal with vector search in a single query for GraphRAG. Speaks SQL over a native MessagePack protocol and the PostgreSQL wire protocol, alongside HTTP/REST, WebSocket, RESP, and ILP. | 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. |
| Vendor | NodeDB-Lab | Ontopic |
| Model | Multiple | RDF |
| Kind | database | query-engine |
| Category | Emerging | Established |
| First released | 2026-04 | 2009 |
| Status | active | active |
| License | BUSL-1.1 | Apache-2.0 |
| Written in | Rust | Java |
| Query languages | SQL, openCypher | SPARQL |
| gdotv support | no | no |
Feature scores — not surveyed for Ontop
| Feature | NodeDB | Ontop |
|---|---|---|
| Community & Business | ||
| Active development | ✓ | — |
| Commercial support | ✓ | — |
| Live community | ✓ | — |
| Open Source | 0.5 | — |
| Pricing | · | — |
| Trendiness | · | — |
| Deployment | ||
| Containerization | ✓ | — |
| Work as dedicated instance | ✓ | — |
| Work as embedded | · | — |
| Testing in-memory version | · | — |
| Platform | ||
| Operating on Linux | ✓ | — |
| Operating on Windows | 0.5 | — |
| 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 | 0.5 | — |
| 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 | 0.5 | — |
| Read committed transaction | ✓ | — |
| Transaction support | ✓ | — |
| Schema & Security | ||
| Constraints | ✓ | — |
| Schema support | ✓ | — |
| Secondary indexes | ✓ | — |
| Server side procedures | ✓ | — |
| Triggers | ✓ | — |
| Authentication | ✓ | — |
| Authorization | ✓ | — |
| Data encryption | ✓ | — |
Links
- NodeDB · website · github · full profile
- Ontop · website · github · full profile