Download of Altova SemanticWorks 2012 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. SemanticWorks.exe is the most common filename for this program's installer. This program is a product of Altova, Inc. The following versions: 2012 and 2008 are the most frequently downloaded ones by the program users. The software lies within Development Tools, more precisely Web Development.
From the developer:
Altova SemanticWorks 2008 is the ground-breaking visual RDF/OWL editor for the Semantic Web from the creators of XMLSpy. Graphically design and edit RDF instance documents, RDF Schema (RDFS) vocabularies, and OWL ontologies then output the format of your choice. SemanticWorks streamlines the job with full syntax and semantics checking.
You may want to check out more software, such as Altova MissionKit® rel2 for Enterprise XML Developers, Altova AltovaXML® Reporting Edition or Altova FlowForce Server, which might be similar to Altova SemanticWorks.