Visualizes and explores circular RNAs (circRNAs). CircView is a desktop application for visualization and exploration of circRNAs in the context of a reference genome. This method is designed based on sets of interfaces and extendable modules, which includes three conceptual layers: (i) an interaction layer, (ii) a model layer, and (iii) a data persistence layer. Furthermore, this application allows users to view regulatory elements, including miRNA response element (MRE) and RNA-binding protein (RBP) binding sites.