OntoPad
The OntoPad is a simple RDF editor written in JavaScript. With the Vocabulary module it provides the possibility to generate a simple RDFS vocabulary and visually compose SHACL shapes based on the vocabulary. The OntoPad is setup on a Quit Store which makes the system collaborative by providing the possibility to exchange data via Git.
The demo installation is available at https://demo.ontopad.aksw.org/, the Vocabulary module at https://demo.ontopad.aksw.org/#/voc.
Feel free to send us a pull-requestst if you want to fix something or provide additions.