Batch File Renamer

What Does the Batch File Renamer Do?

The Batch File Renamer is a pure frontend online tool for previewing and planning batch file rename operations. Supports 6 modes: add prefix/suffix, find & replace, regex replace, sequence numbering, and case conversion. Enter a list of filenames, select a mode, configure parameters, and instantly preview the results. All processing done locally in your browser.

Key Features

• 6 Modes: Prefix, Suffix, Find & Replace, Regex, Sequence, Case Change
• Real-time Preview: See old vs new filenames instantly
• Regex Support: JavaScript regular expressions for advanced replacements
• Sequence Numbering: Custom templates with start value and zero-padding
• One-Click Copy: Copy all new filenames to clipboard

How to Use

Step 1: Enter filenames in the input area, one per line.

Step 2: Select a mode (Prefix/Suffix/Replace/Regex/Sequence/Case).

Step 3: Configure parameters and click "Preview" to see results.

Step 4: Confirm and copy new filenames to clipboard for use.