Best RDF Databases in 2026
Updated
In short: RDFox is ranked #1 of 26 as of 8 October 2026, ahead of Tentris and Fluree DB. The best-ranked option with a free plan is Tentris.
RDF databases give developers a way to store and query linked data. Compare supported RDF formats and SPARQL support against your application's needs, then look at federated queries, reasoning support, and RDF-star support. Deployment options can shape how a database fits your environment, while free-plan availability and paid-from pricing help with cost comparisons. RDFox, Tentris, and Fluree DB are among the options to consider, alongside GraphDB and Apache Jena Fuseki. Which query and reasoning capabilities matter most will depend on the data and workflows your application needs to handle.
26 RDF databases ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
RDF Databases, ranked on how quickly a newcomer can get going. 14 of the 25 on this page can be tried for free.
- 1 RDFoxFree plan
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 2 TentrisFree plan
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 3 Fluree DBFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 4 GraphDBFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 5 QLeverFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 6 Apache Jena FusekiFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 7 StardogFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 8 Virtuoso Universal Server
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 9 ParliamentFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 10 AllegroGraphFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 11 DydraFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 12 Eclipse RDF4JFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 13 RedStoreFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 14 Corese
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 15 Mulgara
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 16 Apache RyaFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 17 qEndpoint
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 18 sparq
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 19 BrightstarDB
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 20 TriplyDB
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 21 eccenca Corporate Memory
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 22 Strabon
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 23 Trigo
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 24 Halyard
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 25 gStore
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
Compare all 25 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Deployment options | SPARQL support |
|---|---|---|---|---|---|---|---|---|
| 1 | RDFox | 7.9 | Free plan | Free | No | — | — | — |
| 2 | Tentris | 7.8 | Free plan | Free | Yes | — | self-hosted | sparql 1.1 |
| 3 | Fluree DB | 7.4 | Free plan | Free | Yes | — | — | sparql 1.1 |
| 4 | GraphDB | 7.4 | Free plan | Free | Yes | — | hybrid | sparql 1.1 |
| 5 | QLever | 7.3 | Free plan | Free | — | — | self-hosted | sparql 1.1 |
| 6 | Apache Jena Fuseki | 7.2 | Free plan | Free | — | — | self-hosted | sparql 1.1 |
| 7 | Stardog | 7.2 | Free plan | Free | Yes | — | — | — |
| 8 | Virtuoso Universal Server | 7.2 | No | — | — | — | — | — |
| 9 | Parliament | 7.1 | Free plan | Free | — | — | self-hosted | — |
| 10 | AllegroGraph | 7.0 | Free plan | Free | Yes | — | — | — |
| 11 | Dydra | 7.0 | Free plan | Free | Yes | — | cloud | sparql 1.1 |
| 12 | Eclipse RDF4J | 7.0 | Free plan | Free | — | — | self-hosted | sparql 1.2 |
| 13 | RedStore | 7.0 | Free plan | Free | Yes | — | self-hosted | sparql 1.1 |
| 14 | Corese | 6.8 | No | — | Yes | — | self-hosted | sparql 1.1 |
| 15 | Mulgara | 6.8 | No | — | — | — | self-hosted | — |
| 16 | Apache Rya | 6.7 | Free plan | Free | Yes | — | hybrid | — |
| 17 | qEndpoint | 6.6 | No | — | — | — | self-hosted | sparql 1.1 |
| 18 | sparq | 6.6 | No | — | — | — | self-hosted | sparql 1.2 |
| 19 | BrightstarDB | 6.5 | No | — | Yes | — | self-hosted | sparql 1.1 |
| 20 | TriplyDB | 6.5 | No | — | Yes | — | hybrid | sparql 1.1 |
| 21 | eccenca Corporate Memory | 6.4 | No | — | — | — | hybrid | sparql 1.1 |
| 22 | Strabon | 6.4 | No | — | Yes | — | self-hosted | sparql 1.1 |
| 23 | Trigo | 6.1 | No | — | — | — | self-hosted | sparql 1.1 |
| 24 | Halyard | 5.9 | No | — | — | — | hybrid | sparql 1.1 |
| 25 | gStore | 5.8 | No | — | — | — | self-hosted | sparql 1.1 |
Is your platform on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which RDF database is ranked first on The Geeks Club?
RDFox is ranked #1 of 26 with a score of 7.9. Tentris is second and Fluree DB third.
How many of these have a free plan?
13 of the 25 on this page publish a free plan on their own pricing pages.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.