GraphDB
GraphDB: A broad RDF platform with a free edition and enterprise-grade deployment options. Ranked #1 of 26 in RDF Databases by our editors (9.3/10); pricing: Free plan · pricing on request; best for teams needing a polished RDF platform.
At a glance
- Editor score9.3 / 10
- PricingFree plan · pricing on request
- Best forTeams needing a polished RDF platform
- Free planYes
- Deployment optionsHybrid
- Facts checked21 Sep 2026
Where it wins
- Supports SPARQL 1.1, reasoning, RDF-star, and federated queries
- Includes Workbench, REST, RDF4J APIs, and broad connectors
- Enterprise adds clustering and multi-region deployments
Where it doesn't
- Enterprise pricing requires contacting sales
- Free edition supports only a single query in parallel
- GraphDB is not open source
Our verdict on GraphDB
GraphDB is an RDF and SPARQL semantic graph database for developers, data scientists, knowledge engineers, administrators, and enterprises. It stores and queries RDF data, supports SPARQL 1.1 query, update, and protocol operations, and adds configurable forward-chaining semantic reasoning, RDF-star, federated queries, and web-based administration through GraphDB Workbench. Teams can deploy it as self-hosted software or through cloud deployments on AWS and Microsoft Azure, with support for web, Windows, macOS, Linux, and API access.
The pricing structure has two clear editions. GraphDB Free costs 0 and includes RDF and SPARQL graph database capabilities, the Lucene connector, and a single query in parallel. GraphDB Enterprise adds unlimited parallel queries, high-availability clustering, multi-region deployments, and connectors for Elasticsearch, OpenSearch, Solr, and Kafka. Enterprise pricing is handled through sales, so organizations evaluating larger deployments should plan for a direct commercial conversation rather than a published self-serve price. The Free edition suits evaluation and smaller workloads, while Enterprise is aimed at teams with concurrency, availability, or geographic deployment requirements.
GraphDB’s main strength is the breadth of its RDF platform and ecosystem. Alongside RDF storage and querying, it offers REST and RDF4J APIs, connectors for Lucene, Elasticsearch, OpenSearch, Solr, Kafka, and MongoDB, plus integrations with AWS and Microsoft Azure. It also includes connectors for LLM-related workflows and supports formats including Turtle, TriG, N3, N-Triples, N-Quads, JSON-LD, RDF/XML, and others. Choose GraphDB when semantic reasoning, standards-based querying, federation, and enterprise deployment options need to sit in one product. Teams seeking open-source software or a fully transparent Enterprise price should consider alternatives.
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GraphDB pricing
All 2 GraphDB plans and prices →
GraphDB fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Deployment options | Hybrid |
| SPARQL support | Sparql 1.1 |
| Reasoning support | Yes |
| RDF-star support | Yes |
| Federated queries | Yes |
| Supported RDF formats | Turtle, Turtle-star, TriG, TriG-star, N3, N-Triples, N-Quads, JSON-LD, NDJSON-LD, RDF/JSON, RDF/XML, TriX, BinaryRDF |
| Deployment | Cloud, Self-hosted, Desktop |
| Platforms | Web, Windows, macOS, Linux |
| Support | Email, Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 9 integrations: Lucene, Elasticsearch, OpenSearch, Solr, Kafka, MongoDB … |
| Pricing | Free plan · pricing on request (source) |
| Website | graphdb.ontotext.com |
| Facts checked | 21 Sep 2026 |
GraphDB integrations
GraphDB lists 9 integrations on its own site.
- Lucene
- Elasticsearch
- OpenSearch
- Solr
- Kafka
- MongoDB
- RDF4J
- AWS
- Microsoft Azure
Alternatives to GraphDB
- AllegroGraphA broad RDF platform for reasoning, federation, analytics, and vector-enabled knowledge graphs.9.1
- StardogA broad enterprise platform for federated queries, virtual graphs, and semantic reasoning.9.0
- Fluree DBAn open-source RDF database for governed knowledge graphs and AI data foundations.8.9
See all GraphDB alternatives →
GraphDB vs the competition
- GraphDB vs AllegroGraph
- GraphDB vs Stardog
- GraphDB vs Fluree DB
- GraphDB vs OpenLink Virtuoso
- GraphDB vs Eclipse RDF4J
- GraphDB vs Apache Jena Fuseki
Compare GraphDB with any tool side by side →
Also Ranked In
GraphDB is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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