Is an Online Public Access Catalog (OPAC) application for libraries. In addition to functioning as an OPAC, this application can also function for registering library members and managing online book lending.In this application, website visitors can search for library collections based on "title", "author", "publisher" and "ISBN" and the availability of books to be borrowed. As for library managers, through this application library managers can manage books borrowed by library members.Through the management of borrowed books online, the library manager and book borrowers (library members) can see a list of borrowed books and information on when the books will be borrowed.must be returned and the status of the book return.