Are my private file lists uploaded to an external server?

No! All rule evaluation and script generation run 100% locally in your browser.

Batch File Renamer

Rename multiple file names using sequential numbering rules.

Document & Archive Studio

Document & Markup Converter

MARKDOWN / HTML INPUT

CONVERTED PLAIN TEXT OUTPUT

Sample Document Heading

This is a sample text formatted with bold, italics, and a list:
• First Item
• Second Item
• Third Item

About Batch File Renamer

The Batch File Renaming Rule Builder & Script Generator creates batch renaming patterns (Search & Replace, Prefix/Suffix, Date Stamping, Index Numbering, Casing Changes), generating ready-to-run Bash, PowerShell, and Python renaming scripts.

Step-by-Step Guide

How to Use Batch File Renamer

Step 1

Paste your list of filenames or drag-and-drop files.

Step 2

Configure your renaming rules (e.g. Search/Replace, Numbering).

Step 3

Inspect the live Before vs After preview table.

Step 4

Copy the generated Bash or PowerShell terminal script.

Industry Scenarios

Practical Use Cases for Batch File Renamer

Renaming Hundreds of Downloaded Photos & Assets

Apply uniform sequential numbering (`IMG_001.jpg`, `IMG_002.jpg`) or date prefixes to folders of vacation photos and camera SD card dumps.

Generating PowerShell / Bash Mass Renaming Scripts

Generate copy-pasteable terminal commands to bulk-rename thousands of server log files on remote Linux/Windows machines.

Sample Data & Transformation

Input & Output Examples

Replacing Spaces with Hyphens across 3 Files

Input Sample:

Files: `My Photo 1.jpg`, `My Photo 2.jpg` | Rule: Replace " " with "-"

Processed Result:

Preview: `My-Photo-1.jpg`, `My-Photo-2.jpg` | Bash Command: `for f in *; do mv "$f" "${f// /-}"; done`

Technical Capabilities

Key Features & Performance

✓Rules: Find & Replace (Regex supported), Add Prefix/Suffix, Change Case, Insert Sequence Number, Remove Characters.
✓Generates executable Bash (`mv`), PowerShell (`Rename-Item`), and Python (`os.rename`) scripts.
✓Live side-by-side Before & After filename preview table.
✓100% Client-Side memory execution.
✓1-Click Copy terminal script.

Technical Glossary

Key Terminology & Definitions

Batch Renaming

Automating the modification of filenames across multiple files in a single pass according to predefined rules.

PowerShell `Rename-Item`

The standard Windows PowerShell cmdlet used for renaming files and directories programmatically.

Frequently Asked Questions (PAA)

Batch File Renamer FAQs

Web browsers cannot directly alter local files without permissions; this tool provides the exact Bash or PowerShell script to execute the batch rename instantly on your machine.