How It Works

Before:
Apply renaming rules
↓
After:
Preview all changes, then apply or undo

See exactly what will happen before making any changes to your files

Preview Functionality

Before/After Preview Table

Original Name New Name Status
IMG_001.jpg 2025-01-02_001.jpg ✅ Ready
IMG_002.jpg 2025-01-02_002.jpg ✅ Ready
document.pdf Q1_Report.pdf ✅ Ready

See exactly how each file will be renamed before applying changes

Undo Functionality

After applying changes: All files are renamed according to the preview

Undo option: Click "Undo" to restore all files to their original names

Safety: No permanent changes until you confirm the operation

Preview Features

  • Real-time preview of all changes
  • Before/after comparison table
  • Highlight differences and changes
  • Validation of naming rules
  • Duplicate name detection

Undo Capabilities

  • Complete undo of all changes
  • Restore original filenames
  • Multiple undo levels
  • Safe operation confirmation
  • No permanent changes until confirmed

Safety Features

  • Preview before applying changes
  • Validation of all operations
  • Error detection and reporting
  • Backup of original names
  • Rollback capabilities

Ready to Rename Safely?

Preview and undo your Windows file renaming operations with our free online tool

🚀 Start Safe Renaming 📖 Learn More

Why Preview and Undo Are Essential for File Renaming?

Preview and undo functionality are crucial safety features when renaming files, especially in batch operations. They allow you to see exactly what changes will be made before applying them, and provide a way to reverse those changes if something goes wrong. This is particularly important when working with large file collections or complex renaming rules.

Our free online tool provides comprehensive preview and undo capabilities, ensuring you can rename files safely and confidently. The preview shows you exactly how each file will be renamed, while the undo function allows you to restore original filenames if needed.

Common Use Cases

  • Large File Collections: Preview changes before processing hundreds of files
  • Complex Renaming Rules: Verify regex patterns and naming conventions
  • Team Collaboration: Ensure consistent naming across team members
  • Project Management: Preview project file naming before implementation
  • Archive Organization: Verify archive naming before permanent changes
  • Backup Operations: Preview backup file naming for consistency

Preview Features

  • Real-time Preview: See changes as you modify renaming rules
  • Before/After Comparison: Side-by-side view of original and new names
  • Change Highlighting: Visual indicators of what will change
  • Validation: Check for errors, duplicates, and invalid names
  • Summary Statistics: Count of files to be renamed and any issues

Undo Capabilities

  • Complete Rollback: Restore all files to their original names
  • Selective Undo: Undo specific files or operations
  • Multiple Levels: Undo several operations in sequence
  • Safety Confirmation: Confirm undo operations to prevent accidents
  • Backup Preservation: Maintain backup of original names

Best Practices

  • Always preview changes before applying them
  • Test with a small batch before processing large collections
  • Verify naming rules and patterns in the preview
  • Check for duplicate names and conflicts
  • Keep backups of important files before renaming
  • Use undo functionality if results aren't as expected

Safety Considerations

  • Windows filename limitations and invalid characters
  • File system permissions and access rights
  • Case sensitivity in Windows file systems
  • File locking and in-use file handling
  • Path length limitations and directory structure