RDF Validator
Parse RDF in Turtle, N-Triples, RDF/XML or JSON-LD and report the first thing that breaks.
RDF is a data model rather than a file format, so asking whether a document is valid RDF is really four questions. Paste one and the syntax is detected from its own shape, the matching reader runs, and the detection is reported with the result -- so a document read as the wrong thing is obvious rather than mysterious.
Based on: W3C Resource Description Framework (RDF) · W3C RDF 1.1 Turtle +1 more
About this validation
Parses RDF in Turtle, N-Triples, RDF/XML or JSON-LD and reports syntax errors with their position. RDF is a data model rather than a file format, so the syntax is detected from the document and the detection is shown with the result.
- Protocol / standard:
- Rules reviewed:
- Nov 15, 2026
SEOTechTests methodology: Detects the syntax from the document, then runs the matching reader: a tokenizing Turtle and N-Triples parser written for this site, XML well-formedness plus RDF root and namespace checks for RDF/XML, and the JSON-LD validator for JSON-LD. Errors are reported with line and column; triples and distinct subjects are counted rather than stored.
Standards and vendor-documented behavior can change. This reflects the source as last reviewed above, not a permanent guarantee.
FAQ
Which RDF syntaxes does this read?
Turtle, N-Triples, RDF/XML and JSON-LD. The syntax is detected from the document itself and the detection is shown with the result, so a document read as the wrong thing is obvious rather than mysterious.[1, 2, 3]
Why does N-Triples reject my prefixes?
N-Triples has no prefix mechanism: every term is a full IRI in angle brackets, a blank node, or a literal, and every line ends with a dot. That is the point of the format -- it is the line-based one you can process without parsing state.[2]
Does it check that my vocabulary terms exist?
No. RDF is a data model: any IRI can be a predicate, and no IRI is misspelled as far as RDF is concerned. For schema.org terms specifically, the Schema.org validator checks the vocabulary.[1]