When uploading files to a web server or transferring the files to an environment that does not support space or non-English characters in filenames, a batch renamer can be used to substitute such characters with acceptable ones.

When authoring music files onto a CD/ DVD or transferring the files to a digital audio player, a batch renamer can be used to listen to songs in desired order.When managing large amount of files, such as a picture database, a batch renamer is more or less essential for the task of maintaining filenames without too much manual labour.A batch renamer can be used to quickly change the filenames to a style that suits the person who downloaded them. When downloading files from the Internet such as mp3 music, the files often have crude names.Using a batch renamer the photographer can easily give the pictures meaningful names. Many digital cameras store images using a base filename, such as DCSN0001 or IMG0001.There are many situations where batch renaming software can be useful. Features include changing the dates of files and changing the file attributes (such as the write protected attribute). Some batch rename software can do more than just renaming filenames. Use a text file as a source for new file names.Add a number sequence (001,002,003.) to a list of files.

Extracting information from the files, such as Mp3 ID3 tags, and putting it in the filename.

Setting the capitalization of the letters in the filenames.

Find a string within the filename and replace it with another, or remove it.

Most batch renamers share a basic set of functions to manipulate the filenames:

Batch file renaming tool