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TriplyDB

Free#14 of 26 in RDF Databases

TriplyDB: A flexible free service for publishing, exploring, and querying linked-data datasets. Ranked #14 of 26 in RDF Databases by our editors (7.8/10); pricing: Free plan; best for sharing and publishing linked-data datasets.

7.8/10Editor score

Visit TriplyDB

TriplyDB7.8 Visit TriplyDB

At a glance

Editor score
7.8 / 10
Pricing
Free plan
Best for
Sharing and publishing linked-data datasets
Free plan
Yes
Paid from
Free
Deployment options
Hybrid
Founded
2018 · Amsterdam, Netherlands
Facts checked
21 Sep 2026

Where it wins
- Free access includes uploads, SPARQL, APIs, visualization, and reasoning.
- Supports public, internal, and private dataset access levels.
- Offers hosted and self-hosted deployment through web and API access.
Where it doesn't
- Its feature set is specialized for RDF and knowledge-graph workflows.
- Hybrid deployment can require more operational decisions than hosted-only tools.
- Reasoning workflows rely on Jena services rather than a standalone reasoning layer.

Our verdict on TriplyDB

TriplyDB is a linked-data database and triple store for organizations that need to store, share, publish, and query knowledge graphs. It supports RDF, JSON, XML, CSV, and TSV uploads, making it suitable for teams working with structured datasets across public, internal, and private contexts. The platform is aimed at use cases ranging from start-ups to enterprises, with browser-based exploration, data stories, APIs, and self-hosted operation alongside Triply-hosted instances. Its strongest fit is for teams that want a publishing layer around linked data rather than a general-purpose database.

The free service covers a broad set of linked-data capabilities. Published plans include SPARQL 1.1 services, REST APIs, API-token authentication, GraphQL, Elasticsearch, Linked Data Fragments, saved and versioned parameterized queries, visualization tools, and a Linked Data Browser. It also supports RDF formats including JSON-LD, N-Quads, N-Triples, RDF/XML, TriG, and Turtle. This breadth gives teams several ways to expose and explore datasets without limiting access to a single query interface. Buyers should still expect the product's workflows and terminology to center on RDF, SPARQL, and knowledge-graph publishing.

TriplyDB also supports RDFS/OWL reasoning through Jena services and offers deployment flexibility across hosted and self-hosted environments. That combination suits organizations that need control over where linked data runs, while the access levels help separate public publishing from restricted content. The trade-off is specialization: teams seeking a conventional relational or document database may find the RDF-first model less appropriate, and self-hosted operation can add operational choices. Choose TriplyDB for controlled, shareable linked-data publishing with API and visualization options; consider a different category of database when RDF and graph semantics are not central.

Your product? Our editors can test TriplyDB in depth and publish a review, labelled as paid · from $149/mo →

TriplyDB pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on triplydb.com

TriplyDB fact sheet

Free plan	Yes
Paid from	Free
Deployment options	Hybrid
SPARQL support	Sparql 1.1
Reasoning support	Yes
RDF-star support	Not verified
Federated queries	Not verified
Supported RDF formats	JSON-LD, N-Quads, N-Triples, RDF/XML, TriG, Turtle
Deployment	Cloud, Self-hosted
Platforms	Web
Compliance & security	ISO 27001, GDPR, 2FA
Support	Email, Phone, Docs · 24/7
Built for	Solo, Small business, Mid-market, Enterprise (editorial estimate)
Pricing	Free plan
Website	triplydb.com
Facts checked	21 Sep 2026

Alternatives to TriplyDB

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Featured on iTechGuides

TriplyDB is listed in our RDF Databases directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update