Doesn't require any server. Your data stays with you. Filtering is faster and you don't have the latency of a web application. Easy to install on any computer using Windows, Mac or Linux.
Select and filters variants directly from a domain specific language that looks like a subset of SQL. It makes possible to create all kinds of query that you could not do with any other user interface. If you don't like query manually, you can always build them indirectly from plugins available from the mainwindow.
Cutevariant is composed entirely of plugins. It means that it is easily customizable at will. You can create custom controllers, themes and support new file formats for importing or exporting.