File Renamer Pro is an easy-to-use file renamer that allows you to rename multiple files and folders at once. It offers various ways of renaming the files, including uppercase, lowercase, file extension renaming, insertion, deletion, string replacements, sequential renaming and more. It can rename MP3 files based on ID3 tag information (e.g artist name, title, etc.). The program provides a preview of the new file names and it supports drag and drop.