BS Rename

BS Rename is a portable application made to help you change file names and extensions in batch mode. It offers support for a wide range of advanced naming rules that should be appealing especially to experienced users.

Since there is no setup pack involved, you can save the program files in any part of the hard drive and double-click the executable to launch the tool. Otherwise, you can keep it stored on a USB flash drive to immediately run it on any computer with minimum effort and no previous installers. It doesn't change Windows registry settings.

Wrapped up in a user-friendly interface, BS Rename features a folder explorer that permits you to locate a directory whose files you want to rename, as well as to apply file masks. Unfortunately, it's not possible to rename files from different folders at the same time.

You can check out the original and new file name and extension, together with the size and date of last modification. Changes can be made to the file name by adding a prefix, suffix or infix, replacing strings of characters with something else, trimming text from the right or left, or by converting the case. Similar modifications can be made to the file extensions.

Numerical incrementation is optional. It's possible to specify a starting number, step and pad, as well as to set the number position: as a prefix or suffix to the name or extension, or as a replacement for the name or extension. The utility can be instructed to convert underscores to spaces, remove duplicate space, and set the date to the current one.

The tool had minimal impact on the overall performance of the computer in our tests, running on low CPU and RAM. It carried out tasks rapidly. However, it failed in its attempt to rename some files and showed an error, but it didn't mention the reason. BS Rename provides you with a long list of renaming options for file names and extensions.