A Guide on How To Use Bulk Rename Utility

Sick of renaming files individually? Whether it’s a few hundred vacation photos, disorganized music filenames, or unorganized documents, individually renaming each one can seem like a task that never ends. That’s where Bulk Rename Utility comes in, a robust, free Windows tool that allows you to rename thousands of files and folders instantly.

In this clear-and-simple guide, you’ll see precisely how to use Bulk Rename Utility, with step-by-step directions and useful tips to enable you to file and name your files smarter and quicker.

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What Is Bulk Rename Utility?

Bulk Rename Utility is a small but powerful Windows file renaming program. It allows users to rename many files and folders with flexible and advanced renaming options, from basic name altering to advanced search and replace functionality.

Step-by-Step Instructions: How to Use Bulk Rename Utility

Bulk Rename Utility boasts a robust, rule-based file renaming system. Here is a step-by-step guide for beginners and intermediate users to make the most of this software.

Step 1: Download and Install Bulk Rename Utility

Go to the official website of Bulk Rename Utility and download the software. Installation is easy; just keep following the instructions, and the software will install on your computer.

After installation, run the software. You are welcomed with an easy but powerful interface that might look daunting at first, but we’ll dissect it for you.

Step 2: Navigating the Interface

Launch the software from your Start menu or desktop.

On the top left side, navigate to the directory containing your files.

The middle panel will show all folders and files in the chosen directory.

Preview Section (bottom pane): The preview section displays a live demonstration of how your files will be renamed according to the current settings.

Tip: Always use the “Preview” section to verify your renaming setup before making changes.

Step 03: Select Files To Be Renamed

To choose files:

Individual files, click on them.

Multiple individual files, hold Ctrl.

Range, hold Shift.

Ctrl + A to choose all the files in the folder.

Tip: Only the selected files will be renamed, so get your selection right.

 

Step 4: Understand the Renaming Panel (Bottom Section)

This is where the magic takes place. Each of the numbered sections in the bottom panel serves a particular renaming purpose.

Step 5: Apply Renaming Rules

Section 2: Name (New Name)

Use when you need to entirely replace the existing filename.

Example: Type ProjectFile and apply numbering (Section 10) to obtain ProjectFile001, ProjectFile002, and so on.

Section 3: Replace

Search For: Type the text you wish to delete.

Replace With: Type the replacement text.

Example: Replace IMG with Trip_2024.

Section 4: Case

Select the desired filename capitalization:

• Lower – all lowercase
• Upper – ALL CAPS
• Title – First Letter Capitalized
• Sentence – The first letter of the filename is only capitalized

Example: holidayPHOTOS.jpg → Holidayphotos.jpg.

Section 5: Remove

Remove characters by position.

• First n: Remove characters from the beginning.
• Last n: Remove characters from the end.
• From/To: Remove characters in a given range.
• Example: Remove first 3 characters → IMG_1234.jpg → 1234.jpg.

Section 6: Move/Copy Parts

Move parts of the filename to another location.

Useful for restructuring structured names.

Section 7: Add

Insert text at:

• Starting point – as a prefix
• Ending point – as a suffix
• At – at a certain character location

Example: Insert “2025_” at the beginning → 2025_IMG001.jpg.

Section 8: Auto Date

Appends a date/time stamp to the file name.

Select position, format (YYYY-MM-DD, etc.), and which date (created, modified, accessed) to use.

Example: IMG001.jpg → 2025-05-30_IMG001.jpg.

Section 9: Append Folder Name

Appends the name of the parent folder to the end of each file.

Helpful for maintaining original locations.

Section 10: Numbering

Numbered files are numbered sequentially automatically. Set:

• Mode: Prefix, suffix, or insert
• Start: Initial number (e.g., 1)
• Increment: Increment between numbers (e.g., 1, 2, 3…)
• Pad: Prepend leading zeros (e.g., 001, 002)

Example: File_ + numbering = File_001.jpg, File_002.jpg.

Section 11: Extension

This section allows you to change or normalize file extensions. Options:

Change extension to lowercase (e.g., .JPG → .jpg)

Change extension to uppercase

Replace extension in full

Use Case Examples:

Normalize all .jpeg files to .jpg

Convert case-mixed extensions such as .Pdf, .DOCx to lower case for uniformity

Hint: Replace all .jpeg with .jpg:

Choose “Fixed Extension” and enter jpg

Careful — incorrectly altering extensions renders files unusable.

Section 12: Filters

This section filters out what files and folders are seen in the selection pane. It does not rename files, but it makes you more efficient by limiting your view. Filters available:

• File/Folder: Display files, folders, or both
• Min/Max Length: Restrict files based on name length
• Match Patterns: Include/exclude based on wildcards (e.g., *.jpg, *report*)
• Timestamp range: Only include files changed/created within a date range

Example: To rename only .mp3 files

Set Filter Pattern to *.mp3

Apply filters before renaming rules to prevent unexpected modifications.

Section 13: Files (File Selection Options)

Section 13 determines how the files are sorted and selected in the list.

• Sort By: Name, size, date of creation, date modified, etc.
• Sort Direction: Ascending or descending
• Selection Mask: Select files automatically by wildcard patterns

Example:

Sort by Date Modified to rename newest first

Use Mask: IMG*.jpg to select files beginning with “IMG”

Useful for batch organization before renaming in large batches.

Section 14: Special

Section 14 provides access to more advanced and extra settings, especially of use with special characters and encodings. Options:

• Remove or convert accented characters (e.g., é → e)
• Remove non-ASCII characters
• Encode/Decode UTF-8 characters
• Replace characters not allowed in Windows filenames

Example: When you have files in another language or exported from Mac/Linux, use this to sanitize invalid characters.

It is particularly of use when getting files ready for upload, migration, or archiving.

Step 6: Preview the Renamed Files

Take a look at the “New Name” column in the middle pane.

This is what your files will be renamed to according to your rules.

If something appears to be incorrect:

Adjust your settings

Click “Reset” to begin again. Nothing is changed until you agree to the renaming. This preview is 100% safe.

Step 7: Rename

When you’re satisfied with the preview, press the “Rename” button at the bottom right.

The files will be renamed immediately.

Step 8: Check Results

Double-check your files in the folder after renaming. A confirmation dialog will pop up – press “OK” to proceed.

Advantages of Bulk Rename Utility

• Saves Time and Effort: Renaming hundreds of files manually is laborious. Bulk Rename Utility renames hundreds or thousands of files in seconds.
• Highly Customizable: From basic name modifications to intricate rules (e.g., date-stamping, regex, metadata-based renaming), BRU has 14 rule-based sections to blend. Flexibility renders it accessible to everyone, from the normal user to the IT person.
• Safe and Transparent: Real-time preview pane reveals what new file names will appear before making any changes. You are always completely in charge, which decreases errors.
• Fully Free for Personal Use: Unlike most comparable applications, Bulk Rename Utility is fully free to use personally, with everything included. 

Tips for Maximizing Bulk Rename Utility

• Always Backup Your Files: Although Bulk Rename Utility is extremely dependable, it’s still preferable to back up your files prior to performing bulk modifications. This will allow you to return to the original file names if necessary.
• Use the “Preview” Feature: Always utilize the preview area to guarantee that the renaming options do what they are supposed to. It’s a precaution against expensive errors.
• Take Advantage of Regular Expressions: If you understand regular expressions, they can save you a lot of time, particularly when renaming files with a particular pattern.
• Use the Filter Options: If you’re renaming only certain files, use the filter or search function to find and select only those files you require in a matter of seconds.
• Automate the Process: You can save your renaming settings as profiles using Bulk Rename Utility. If you constantly do the same type of operations, saving these profiles will save you time in the long run.

Bulk Rename Utility is perhaps the most versatile and powerful Windows file renaming utility. The interface may look daunting at first, but this tutorial should have you familiar with it in no time. After a bit of practice, you’ll be creating complex configurations for batch renaming in the blink of an eye, saving time, streamlining organization, and eliminating errors.

From photographer to developer, to student to office professional, everyone can benefit from mastering the Bulk Rename Utility to get their work done quickly and efficiently.