Bulk file name cleaner
Preview consistent, portable file names from a pasted list and download a rename plan.
Up to 1,000 names.
Enter your values or select local files.
Works locally. It creates a CSV plan and does not rename or upload any file. Review names before applying them. Spreadsheet formula characters are escaped in the CSV export.
Formula
Normalize Unicode → remove control/path/reserved characters → collapse spaces → trim → deduplicate names.
Worked example
Project: Draft?.pdf → Project- Draft-.pdf. A second identical name gains a numbered suffix.
How to use this tool
Enter values or select the relevant local data.
Review the result, example and assumptions.
Reset the tool or export a reviewable plan.
Good questions. Clear answers.
What does this tool calculate?
Preview consistent, portable file names from a pasted list and download a rename plan.
What assumptions and limits apply?
Works locally. It creates a CSV plan and does not rename or upload any file. Review names before applying them. Spreadsheet formula characters are escaped in the CSV export.
What calculation does it use?
Normalize Unicode → remove control/path/reserved characters → collapse spaces → trim → deduplicate names.