TagMachine is an online application designed to build a complete cataloging system for businesses or personal users. This tool classifies all types of documents accessible via a URL, such as web pages and documents stored on services like Google Drive and OneDrive. It also allows the writing and classification of text notes.

TagMachine facilitates cataloging by adding tags to documents. These tags are organized hierarchically in trees that users can predefine, thus allowing the entire organization to follow a uniform cataloging structure. Additionally, users have the option to define additional tag trees to enrich or complement the standard cataloging structure.

The database of cataloged documents can be shared with other TagMachine users, facilitating collaboration and shared access to information.