Bulk Rename Utility on Windows: Mass File Renaming Guide

Bulk Rename Utility is a free tool for renaming hundreds of files in a few clicks. Essential for photographers, videographers and anyone managing large file collections.

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Install

Download from bulkrenameutility.co.uk — portable version available.

winget install TGRMNSoftware.BulkRenameUtility

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Common Scenarios

1. Number files sequentially

Section C (Numbering):
Start: 001, Incr: 1, Pad: 3
Format: {NAME} ({NUM})

Result: photo.jpg → photo (001).jpg

2. Remove text from name

Section D (Replace):
Replace: "IMG_"
With: ""

3. Change case

Section I (Case):
Title → Each Word Capitalized
Lower → all lowercase

4. Add prefix or suffix

Section B (Add):
Prefix: "2026_"
Suffix: "_final"

5. Replace spaces with underscores

Section D (Replace): " " → "_"

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Regex Examples

Enable RegEx in Section D:

\d+       → remove numbers
\s+       → replace spaces: _
\s*\(.*\) → remove text in brackets

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PowerShell Alternative

For simple operations PowerShell is faster:

# Add prefix to all jpg
Get-ChildItem *.jpg | Rename-Item -NewName { "2026_" + $_.Name }

# Replace spaces with underscores
Get-ChildItem *.mp4 | Rename-Item -NewName { $_.Name -replace ' ', '_' }

# Number files
$i = 1
Get-ChildItem *.jpg | Sort-Object Name | ForEach-Object {
    Rename-Item $_ -NewName ("photo_{0:D3}.jpg" -f $i++)
}

# Change .jpeg to .jpg
Get-ChildItem *.jpeg | Rename-Item -NewName { $_.Name -replace '\.jpeg$', '.jpg' }

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Undo Renaming

Edit → Undo (Ctrl+Z)

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Summary

Task	Section
Add numbers	C (Numbering)
Remove text	D (Replace) or E (Remove)
Add prefix/suffix	B (Add)
Change case	I (Case)
Change extension	G (Extension)
Complex operations	D (Replace) + RegEx
No software needed	PowerShell Rename-Item