Best RDF Databases in 2026
Updated
In short: Eclipse RDF4J is ranked #1 of 26 as of 4 October 2026, ahead of Fluree DB and GraphDB. The best-ranked option with a free plan is Fluree DB.
RDF databases give you a way to store and work with data represented in RDF. To compare the options, look at supported RDF formats and SPARQL support, then weigh federated queries, reasoning support, and RDF-star support against your needs. Deployment options can help you assess where a database may fit, while free-plan availability and paid-from pricing provide cost context. GraphDB and Stardog appear at the top of the ranking, with Fluree DB and Eclipse RDF4J following among the first entries. The ranked order and comparison fields offer a starting point for considering query capabilities, data formats, and the environment you need to support.
26 RDF databases ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 Eclipse RDF4J Top pick · 7.3 Free plan · Free
#2 Fluree DB Runner-up · 7.3 Free plan · Free
#3 GraphDB Also great · 7.3 Free plan · Free
- Free plan apiLinuxmacOSself-hostedWebWindows
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.2
- Reasoning support
- Yes
- RDF-star support
- Yes
RecognisedDocumentedFree planPlatforms - Free plan apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
- SPARQL support
- sparql 1.1
- Reasoning support
- Yes
- RDF-star support
- Yes
RecognisedDocumentedFree planPlatforms - Free plan apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
- Deployment options
- hybrid
- SPARQL support
- sparql 1.1
- Reasoning support
- Yes
- RDF-star support
- Yes
RecognisedDocumentedFree planPlatforms - Free planFree trial apiLinuxmacOSself-hostedWebWindows
- Free plan
- No
RecognisedDocumentedFree planPlatforms - Free plan apiLinuxself-hostedWebWindows
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
- Reasoning support
- Yes
- RDF-star support
- Yes
RecognisedDocumentedFree planPlatforms - Free plan apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free planFree trial LinuxmacOSself-hostedWeb
- Free plan
- Yes
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
- Reasoning support
- No
RecognisedDocumentedFree planPlatforms - Free plan apiLinuxself-hostedWeb
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free plan apiself-hostedWeb
- Free plan
- Yes
- Deployment options
- cloud
- SPARQL support
- sparql 1.1
- Reasoning support
- Yes
RecognisedDocumentedFree planPlatforms - apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
- Reasoning support
- Yes
- RDF-star support
- Yes
RecognisedDocumentedFree planPlatforms - Free trial apiLinuxmacOSself-hostedWebWindowsRecognisedDocumentedFree planPlatforms
- apiself-hostedWeb
- Free plan
- Yes
- Deployment options
- hybrid
- SPARQL support
- sparql 1.1
- Reasoning support
- Yes
RecognisedDocumentedFree planPlatforms - WindowsLinuxmacOSiOSAndroid
- Free plan
- Yes
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
RecognisedDocumentedFree planPlatforms - WebWindowsmacOSLinux
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
RecognisedDocumentedFree planPlatforms - WebWindowsmacOSLinux
- Deployment options
- self-hosted
- Reasoning support
- Yes
RecognisedDocumentedFree planPlatforms - WebLinux
- Deployment options
- hybrid
- SPARQL support
- sparql 1.1
- Reasoning support
- Yes
RecognisedDocumentedFree planPlatforms - WebLinuxmacOS
- Deployment options
- hybrid
- SPARQL support
- sparql 1.1
RecognisedDocumentedFree planPlatforms - WebWindowsmacOSLinux
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
RecognisedDocumentedFree planPlatforms - Linux
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
- Reasoning support
- Yes
RecognisedDocumentedFree planPlatforms - WindowsLinux
- Deployment options
- self-hosted
- Reasoning support
- Yes
RecognisedDocumentedFree planPlatforms - LinuxWindows
- Free plan
- Yes
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
- Reasoning support
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- Deployment options
- hybrid
- Reasoning support
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
- RDF-star support
- No
RecognisedDocumentedFree planPlatforms - macOS
- Free plan
- Yes
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.1
RecognisedDocumentedFree planPlatforms -
- Deployment options
- self-hosted
- SPARQL support
- sparql 1.2
- Reasoning support
- Yes
- RDF-star support
- Yes
RecognisedDocumentedFree planPlatforms
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which RDF database is ranked first on Everything Xiaomi?
Eclipse RDF4J is ranked #1 of 26 with a score of 7.3. Fluree DB is second and GraphDB third.
How many of these have a free plan?
9 of the 25 on this page publish a free plan on their own pricing pages.
How is this list ranked?
Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on. Paid placements never change a rank.