Renamer 4.0

Renamer allows you to rename and number many files at once. With Renamer's system menu, you can rename files directly from Finder and store your favorite rename tasks in presets and access them later.

This application is used by web designers, photographers, developers, artists, system administrators, writers, graphic designers, network administrators and pretty much anybody who uses their Mac on a professional basis.
Renamer is a batch file renamer that can help you with a number of common tasks, such as number photos, change file extensions, random rename, remove white space, replace characters, change to upper/lower case, prepare for the web or insert characters.