Find & Replace

The Find & Replace feature lets you search for specific text within filenames and replace it with something else. It works on all selected files at once, making it easy to fix naming mistakes or update file names in bulk.

How It Works

Select one or more files in Windows Explorer.
Right-click and choose FilerFrog → Rename → Find & Replace.
In the Find field, type the text you want to search for.
In the Replace field, type the text you want to use instead.
Click OK to apply the rename.

Example: You have a file named uselessFile.PDF. Enter useless in the Find field and Important in the Replace field. The file is renamed to ImportantFile.PDF.

Options

Match case — When enabled, the search is case-sensitive. For instance, searching for file will not match File.
Include extension — When enabled, the search also applies to the file extension. Leave this off if you only want to modify the name portion.

Tip: Leave the Replace field empty to simply remove the matched text from all filenames.

Common Use Cases

Removing unwanted prefixes or suffixes added by a camera or download tool.
Replacing spaces with dashes (or vice versa) for cleaner file names.
Correcting a misspelled word across many files at once.

Scenario

You downloaded a batch of photos and each filename starts with IMG_. Select all the photos, open Find & Replace, enter IMG_ in the Find field, and leave the Replace field empty. Every file will have the IMG_ prefix removed instantly.

Case Insensitive Matching

Check the Case insensitive option to match text regardless of capitalization. For example, searching for "photo" will match "Photo", "PHOTO", and "photo".

Regular Expressions

Check Use regular expressions to use powerful pattern matching. This lets you match complex patterns in filenames.

Examples:
Find \d+ → matches any sequence of digits
Find IMG_(\d+), Replace Photo_$1 → renames "IMG_001.jpg" to "Photo_001.jpg"
Find \s+, Replace _ → replaces spaces with underscores