Mulgara
Mulgara: A self-hosted RDF server combining graph storage, querying, inference, and SQL-source access. Ranked #20 of 26 in RDF Databases by our editors (7.2/10); pricing: Open source; best for traditional RDF servers with SQL-source access.
At a glance
- Editor score7.2 / 10
- PricingOpen source
- Best forTraditional RDF servers with SQL-source access
- Paid fromFree
- Deployment optionsSelf-hosted
- Facts checked21 Sep 2026
Where it wins
- Native RDF storage with SPARQL and TQL querying
- Rule-based inference, full-text search, and transactions
- Local, remote, HTTP, and JDBC-backed data resolvers
Where it doesn't
- Self-hosted deployment requires infrastructure management
- Documentation is substantially dated
- Its broad feature set may exceed narrow RDF storage needs
Our verdict on Mulgara
Mulgara is an open-source RDF semantic store for applications that need to store, query, and relate metadata. It is suited to teams seeking a self-hosted RDF server with native graph storage, multiple databases or models per server, SPARQL and TQL querying, transactions, full-text search, and rule-based inference through the Krule engine. It can run as a standalone Java server or as an embedded database, giving developers a choice between a server deployment and application-level integration.
Mulgara’s open-source model keeps the product centered on self-hosted deployment rather than a tiered commercial plan structure. Its platform coverage includes web, Windows, macOS, Linux, API, and self-hosted use. The integration surface includes the Sesame SAIL API, JRDF, SOAP, HTTP, the Software Developers Kit, and JDBC through D2RQ. Resolvers can connect to local files, HTTP resources, remote Mulgara stores, and JDBC-backed data sources, which makes the product relevant when RDF workloads need to relate graph data to SQL-backed systems. RDF graph import and export support includes RDF/XML, N-Triples, and N3.
The main trade-off is operational ownership. Teams must manage a self-hosted server or embedded deployment, and the product’s published documentation is substantially dated. Mulgara is a practical fit for developers who need a traditional RDF platform with inference, persistence, transactions, web services, and several data-access paths in one system. It is less suitable for teams that want a hosted RDF service, a newer managed experience, or a narrowly focused graph store with minimal administration. Choose it when SQL-source access and broad server capabilities matter more than a modern onboarding experience.
Your product? Our editors can test Mulgara in depth and publish a review, labelled as paid · from $149/mo →
Mulgara pricing
Mulgara fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Deployment options | Self-hosted |
| SPARQL support | Not verified |
| Reasoning support | Yes |
| RDF-star support | Not verified |
| Federated queries | Yes |
| Supported RDF formats | RDF/XML, N-Triples, N3 |
| Deployment | Cloud, Self-hosted, Desktop |
| Platforms | Web, Windows, macOS, Linux |
| Support | Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 6 integrations: Sesame SAIL API, JRDF, SOAP, HTTP, Software Developers Kit (SDK), JDBC via D2RQ |
| Pricing | Open source |
| Website | code.mulgara.org |
| Facts checked | 21 Sep 2026 |
Mulgara integrations
Mulgara lists 6 integrations on its own site.
- Sesame SAIL API
- JRDF
- SOAP
- HTTP
- Software Developers Kit (SDK)
- JDBC via D2RQ
Alternatives to Mulgara
- GraphDBA broad RDF platform with a free edition and enterprise-grade deployment options.9.3
- 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
See all Mulgara alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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