Semantic Web Browser

About the tool

All things on the Semantic Web are identified by URIs, e.g. wd:Q513 stands for Mount Everest and foaf:knows denotes the "knows" relationship between two people. The structured data about these entities is serialized and made available using multiple methods such as HTML-embedded JSON-LD, static Turtle files, and SPARQL endpoints.

Taken together, everyone's structured datasets form the global linked data cloud in which the URIs act as reusable identifiers—references to concepts, relationships, and real-world things. Dereferencing these URIs and extracting the data about the underlying entities is not always easy without knowing exactly where to look and how to use the linked data formats, protocols, and query languages. This is why I've created this Semantic Web Browser—an online tool for looking up "things" by their URIs that returns the authoritative information about the entities from around the linked data web.

Demo

How to use it?

Enter the URI into the search box to look up the structured data about an entity. If the URI is dereferenced successfully, the RDF statements about the entity are returned.

How does it work?

Given a URI, the tool attempts to dereference it and extract the structured data about the entity. It therefore provides a single and simple interface into exploring entities from Wikidata, Google Knowledge Graph, DBpedia, and other sources.

See also

• RDF* and the onset of Linked Data* and the Semantic Web* - The evolution of RDF and the related technologies fuelled by the need to make statements about statements.
• SHACL Validator - Validate RDF data against SHACL shapes.
• RDF graphs - Intro to RDF graph visualization + demo.
• OWL reasoning - Using OWL reasoning to infer new knowledge.
• OWL Functional Syntax Parse Tree Viewer - View the parse tree of OWL Functional Syntax.
• SPARQL Playground (RDF Playground) - Experiment with running SPARQL queries against RDF data.
• SPARQL Client - Query SPARQL endpoints online.
• Why federation is a game-changing feature of SPARQL - SPARQL federation is an incredibly useful feature for querying distributed RDF graphs.
• Introduction to SPARQL - SPARQL is a query language for graph data. The graph model of thinking fits well a lot of use cases.
• SPARQL Parse Tree Viewer - Visualize the parse tree of SPARQL queries.
• Turtle Editor - Edit Turtle documents online.
• Turtle Inspector - Inspect the RDF content of Turtle files.
• Turtle Parse Tree Viewer - Visualize the parse tree of Turtle syntax.
• Let's explore the Nobel Prize dataset - An overview of the official Nobel Prize Linked Data dataset with some example SPARQL queries.
• Data exploration on linked COVID-19 datasets - An overview of the available RDF datasets and discovery tools for COVID-19.
• Creating an Amazon Neptune database using AWS CDK v2 - Provisioning a graph database cluster in AWS using TypeScript.
• The RDF model of the Gene Ontology, demystified - An outline of the structure of the Gene Ontology RDF graph and ways to query it.
• Semantic Web Crossword - A daily crossword puzzle for Semantic Web enthusiasts.