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Best RDF Databases in 2026

RDF databases are for storing and working with data represented as linked statements. Compared on SPARQL support, supported RDF formats, federated queries, and reasoning support, these entries also show whether they support RDF-star. Deployment options and the free-plan and paid-from fields add practical points to weigh against your infrastructure and budget. Apache Jena Fuseki, Eclipse RDF4J, and Fluree DB are among the named options, alongside GraphDB, RDFox, Stardog, Tentris, and AllegroGraph. Compare the capabilities against the data formats, query patterns, and deployment approach your application needs.

26 apps
Research read 23 Sept 2026
How the order is worked out

1

Apache Jena Fuseki

Free plan Open source APILinuxSelf-hosted+2

Apache Jena Fuseki combines SPARQL protocols with several deployment modes and TDB storage. Check the graph-level access-control limit and default endpoint exposure when planning a deployment.

9.3 Open source Visit site
2

Eclipse RDF4J

Free plan Open source APILinuxMac+3

RDF4J brings RDF storage, querying and reasoning tools together in a Java framework, with several storage options and a broad format list.

9.1 Open source Visit site
3

Virtuoso Universal Server

Free plan Open source APILinuxMac+3

Choose Virtuoso if you need a multi-model database that can present data from different sources through one view, with both open-source and commercial licensing available.

8.5 Open source · 30-day trial Visit site
4

AllegroGraph

Free plan APILinuxSelf-hosted+1

AllegroGraph combines graph querying and reasoning with recovery features, vector support, and multiple deployment options.

7.7 Free plan Visit site
5

Apache Rya

Free plan APISelf-hostedWeb

Choose Apache Rya if you need a free RDF triple store with SPARQL, reasoning, and support for distributed data management. Its backend and deployment options may suit teams using Accumulo or MongoDB.

7.5 Free plan Visit site
6

eccenca Corporate Memory

Free plan APILinuxSelf-hosted+1

Corporate Memory combines semantic modeling, data integration, governance, and multiple access interfaces for enterprise knowledge graph work.

7.5 Pricing on request Visit site
7

Dydra

Free plan APISelf-hostedWeb

Choose Dydra for cloud graph applications that need property graph storage, SPARQL 1.1, and managed data store operations.

7.4 Free plan Visit site
8

Fluree DB

Free plan APILinuxMac+3

Fluree DB combines graph data, ledger-backed history, search, and granular policy controls in a single binary.

7.4 Free plan Visit site
9

GraphDB

Free plan APILinuxMac+3

GraphDB offers semantic graph storage and reasoning, with a free edition and an Enterprise option.

7.4 Free plan · pricing on request Visit site
10

BrightstarDB

Free plan AndroidAPIiPhone+4

Choose BrightstarDB for a free, MIT-licensed RDF database when your application uses .NET, SPARQL, or RDF endpoints.

7.3 Free plan Visit site
11

Corese

Free plan APILinuxMac+3

Corese offers a broad set of RDF and Semantic Web tools, including a server, library, and self-hosting options.

7.3 Free plan Visit site
12

Parliament

Free plan LinuxMacSelf-hosted+1

Parliament brings triple storage and reasoning together under a free BSD license, with deployment guidance for multiple operating systems.

7.3 Open source Visit site
13

QLever

Free plan APILinuxMac+3

QLever brings SPARQL, text search, query assistance, and spatial features to self-hosted RDF data.

7.2 Open source Visit site
14

RedStore

Free plan APILinuxMac+1

RedStore combines HTTP access, SPARQL standards support, and multiple storage choices in a self-hosted RDF triplestore.

7.1 Free plan Visit site
15

Stardog

Free plan AndroidAPIiPhone+5

Stardog offers data virtualization, semantic querying, and knowledge-graph tools across several deployment options.

7.1 Free plan Visit site
16

Halyard

Free plan APILinuxMac+2

Halyard brings RDF storage, querying, and bulk dataset management together around Hadoop and HBase. Check its runtime requirements and federation limit against your environment before choosing it.

7.0 Open source Visit site
17

Mulgara

Free plan APILinuxMac+3

Choose Mulgara for a free, self-hosted RDF store with SPARQL and TQL, reasoning, and federated query support. Look elsewhere if you need CRUD operations through SPARQL rather than TQL.

7.0 Open source Visit site
18

qEndpoint

Free plan APILinuxMac+3

Choose qEndpoint if you need a free RDF triple store that can run as a standalone SPARQL endpoint or be included as a dependency.

7.0 Open source Visit site
19

Tentris

Free plan LinuxMacSelf-hosted+1

Tentris offers a free, self-hosted route for non-commercial RDF and SPARQL work, alongside annual commercial licensing.

7.0 Free plan · 60-day trial Visit site
20

gStore

Free plan APILinuxSelf-hosted

gStore provides a broad RDF database, query and graph-analysis toolkit with several language APIs and management utilities.

6.9 Open source Visit site
21

Quadstore

Free plan APILinuxSelf-hosted+1

Quadstore provides a TypeScript RDF store with flexible Level-compatible backends and RDF/JS integration.

6.9 Open source Visit site
22

Strabon

Free plan LinuxSelf-hostedWindows

Strabon combines geospatial RDF storage with temporal modeling and specialized query languages.

6.6 Free plan Visit site
23

TriplyDB

Free plan APISelf-hostedWeb

TriplyDB combines linked-data exploration, access controls, and multiple ways to serve data.

6.5 Free plan Visit site
24

RDFox

Free trial APILinuxMac+3

RDFox combines RDF storage, SPARQL querying, reasoning and multiple deployment options.

6.1 Pricing on request Visit site
25

sparq

Paid APILinuxMac+2

Choose sparq when you need an open-source, self-hosted RDF store with broad SPARQL support and optional reasoning or search features. Its many interfaces and deployment options suit technical teams.

5.2 Open source Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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