Rename many file names by rule: find and replace, prefix and suffix, numbering, letter case and special character cleanup, with live preview and duplicate detection
FAQ
Does this tool rename the files on my computer?
No. It only computes new names for the pasted list and detects duplicates. Your real files are untouched; apply the changes yourself with the mapping table.
How do I use the rename mapping?
The live preview shows original and new names side by side. Copy the mapping or download it as a txt file to apply in a file manager, a script or other tools.
All data is processed locally in your browser. Nothing is uploaded.