RDFLib vs Stardog

Both are rdf databases queried with SPARQL. RDFLib (2002, BSD-3-Clause, Python) ranks #21 this month; Stardog (2011, Proprietary, Java) ranks #23.

Attribute RDFLib #21 ▲3 Strong Stardog #23 ▲10 Strong
At a glance
Rank #21#23
Score 56.155.7
GitHub stars 2.5k—
Popularity 69.553.2
Activity 50.063.1
Community 40.552.9
Research 67.750.2
Fundamentals
Description The de facto standard Python library for working with RDF graphs. Provides pluggable storage backends, a SPARQL query interface, and extensive serialization format support.An RDF-based knowledge graph database with OWL 2 reasoning and property graph extensions. Includes Voicebox, an OpenAI-compatible natural language query interface via LLM integration.
Vendor RDFLib CommunityStardog Union
Model RDFRDF
Kind librarydatabase
Category EstablishedEnterprise
First released 20022011
Status activeactive
License BSD-3-ClauseProprietary
Written in PythonJava
Query languages SPARQLSPARQL, SQL, GraphQL
gdotv support yesyes

Feature scores — not surveyed for RDFLib

Feature RDFLibStardog
Community & Business
Active development —0.5
Commercial support —✓
Live community —✓
Open Source —·
Pricing —·
Trendiness —✓
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 —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 —·