Quadstore

6.5easy start · #21of 26
in RDF Databases

Well documentedyes
Runs where you workno

Runs on api, Linux, self-hosted, Web.

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Quadstore is ranked #21 of 26 in RDF databases on The Geeks Club. It runs on API, Linux, Self-hosted, Web.

Compared on RDF databases

Deployment options: self-hosted
SPARQL support: sparql 1.1
RDF-star support: No
Supported RDF formats: Turtle

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The record

Product: Quadstore is a LevelDB-backed RDF graph database and triplestore for JavaScript runtimes, written in TypeScript.
RDF/JS support: It implements the RDF/JS Sink, Source, and Store interfaces for interoperability with RDF libraries.
SPARQL: SPARQL queries are supported through quadstore-comunica, a separate tailored distribution and configuration of Comunica.
Named graphs: Quadstore supports querying across named graphs.
Storage backends: It accepts any storage backend implementing the AbstractLevel interface; the README highlights classic-level, memory-level, and browser-level.
Browser storage: The browser-level backend provides persistent browser-side storage through IndexedDB.
RDF integrations: It works with RDF/JS-compatible parsers and serializers, with n3 and @rdfjs/formats given as examples.
Query features: Its matching API supports range queries, and numeric literal ranges compare numerical values for listed numeric datatypes.
Blank-node handling: Optional scopes replace blank-node labels with randomly generated labels to prevent collisions when importing separate quad sets.
Runtime requirement: The README says Node.js 18.0.0 or later is required and also describes use with Deno, browsers, and Bun.
Parsing limitation: Quadstore does not include RDF parsing or serialization, so users must supply compatible libraries for those tasks.
Index limitation: Partial indexes are not supported, and a query without a suitable configured index throws an error.
Status and license: The project describes itself as active and under development and identifies its license as MIT.
RDF/JS: It implements the RDF/JS Sink, Source, and Store interfaces.

Where it ranks on The Geeks Club

Best RDF Databases in 2026#21 of 26

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Sources

github.com/quadstorejs/quadstore· checked 9 Oct 2026