Awesome

OnAGUI

OnAGUI - Ontology Alignment GUI - Software to help automatic or manual realisation of ontologic alignment

OnAGUI can align SKOS thesauri, OWL ontologies, or arbitrary RDF entities (based on common labelling properties).

You can download OnAGUI from the releases section , and you can read more in the wiki section !

OnAGUI is a Java application that can be run on Windows or Linux; it only requires Java8 to be installed.