What implementations of the Shapes Constraint Language exists?
Open source implementations:
- Apache Jena, supports SHACL Core and SHACL SPARQL .
- RDF4J, supports a subset of the SHACL Core  , including DASH .
- TopQuadrant SHACL API, based on Apache Jena. Supports most features, including SHACL-C, SHACL-AF and SHACL-JS .
- pySHACL, supports most SHACL features as SHACL Core, SHACL Rules and SHACL-JS .
- dotNetRDF SHACL Service, supports SHACL Core .
- TopBraid EDG, full SHACL support .
- Stardog, supports SHACL Core .
- Ontotext, using RDF4J ShaclSail .
- AllegroGraph .
SHACL Playground .
Disclaimer: there might be some implementations I’ve missed.