BookDB is a program that allows you to keep your book collections in a single place. It has been designed for librarians but can also be used by a user who wishes to organize his books. Depending on your choice, you can enter your books by author, category, editor or by any other criteria so as to simplify the task when filtering your recordings. In addition, if you run a library, the program allows you to save the borrowers, the loan out books, to add multiple copies and so on. BookDB is a multilingual program and free. In its database, it can record up to two million books.