RDFusion brings RDF editing and validation directly into VS Code. Whether you’re working with Turtle or JSON-LD 1.1, RDFusion:
Highlights inline syntax errors as you type
Runs and highlights SHACL shape validation against your data model as you type
Suggests vocabulary terms (e.g. foaf:, schema:, rdf:) from both local files and remote registries
Lets you group triples by subject into compact blocks for readability as well as filter triples based on user input specification
Features & Commands
Inline Syntax & SHACL Validation
RDFusion parses your Turtle and JSON-LD and flags errors and warnings inline right in the editor .
RUN “RDFusion: Toggle Turtle Validations” and “RDFusion: Toggle JSONLD Validations” to enable and disable validation types, including duplicate triples detection in both Turtle and JSON-LD.
RUN “RDFusion: IRI Scheme Validation Configuration” to customize how IRI schemes are validated in RDF documents (currently only pplies to ttl) — including enabling strict mode and defining a custom whitelist of allowed schemes (e.g., http, https, mailto, tel).
Prefix Suggestions
As you start declaring prefix, RDFusion gives suggestions. RDFusion also gives an option to automatically declare prefix, after usage of undeclared prefix.
Vocabulary Completion
As you type prefix names, RDFusion suggests terms from:
Local workspace graphs
Remote registries (LOV API, Direct Dereference)
RUN “RDFusion: Toggle Autocomplete” to switch term completion between local, remote, or both sources. Also to enable/disable declaration of undeclared prefix.
Triple Management
RUN “RDFusion: Group by Subject” to transform flat Turtle into grouped blocks.
RUN “RDFusion: Filter Triples By Subject-Predicate-Object” to filter triples based on user specified subject, predicate, and object; supporting both full IRIs and prefixed names, as well as literal values. Filtered triples are shown in new untitled VS Code editor tab.
RUN “RDFusion: Filter Triples By Subject” to filter triples only based on user specified subjects; supporting both full IRIs and prefixed names. Filtered triples are shown in new untitled VS Code editor tab.
RUN “RDFusion: Filter Triples By Predicate to filter triples only based on user specified predicates; supporting both full IRIs and prefixed names. Filtered triples are shown in new untitled VS Code editor tab.
RUN “RDFusion: Filter Triples By Object” to filter triples only based on user specified objects; supporting both full IRIs and prefixed names. Filtered triples are shown in new untitled VS Code editor tab.
RUN “RDFusion: Sort Triples by Subject Ascending” to reorder all triples in the current Turtle editor tab by subject IRI in ascending order.
RUN “RDFusion: Sort Triples by Subject Descending to reorder all triples in the current Turtle editor tab by subject IRI in descending order.
RUN “RDFusion: Sort Predicates within Subject Ascending” to reorder predicate–object pairs inside each subject block in ascending order by predicate.
RUN “RDFusion: Sort Predicates within Subject Descending to reorder predicate–object pairs inside each subject block in descending order by predicate.
RUN “RDFusion: Generate VoID” to generate a Vocabulary of Interlinked Datasets. It will generate void:triples, void:distinctSubjects, void:distinctObjects, void:properties, void:propertyPartition, void:classPartition, and void:vocabulary for your current open ttl or jsonld file.
RUN “RDFusion: Merge Files” to merge the current open ttl/jsonld file with another ttl or jsonld file. The merged data is grouped and shown in new untitled VS Code editor tab. Alternative option is to select ttl/jsonld files from Explorer and on right-click select “RDFusion: Merge Files” option.
RUN “RDFusion: Toggle IRI Shortening” to enable/disable IRI shortening and expansion in Turtle. Once enabled you can shorten and expand each IRI inside the editor.
RUN “RDFusion: Set IRI Shorten Length” to set the maximum length before applying IRI shortening in Turtle.
RUN “RDFusion: Turtle Formatter” formats Turtle triples in the current editor tab using your configured style rules.
RUN “RDFusion: Turtle Formatter Configuration” to customize Turtle formatting style rules — including indentation, line breaks, predicateObjectlist formatting, and use of prefixes.
RUN “RDFusion: Frame Jsonld From Template” to apply a predefined JSON-LD frame to the current open jsonld editor tab.
