Bulk File Renamer
Rename many files at once and download them as a ZIP.
Upload files to preview their new names.
Rename Many Files at Once
Add files, set rename rules â find-and-replace, prefix, suffix, sequential numbering, case, and space handling â preview the new names, then download everything as a ZIP. The file contents are never changed.
Rename rules
- Find and replace text in names
- Add a prefix or suffix
- Sequential numbering with zero-padding
- Lower/upper case and space-to-dash/underscore
Order of operations
Rules apply in a fixed order: find/replace â spaces â case â prefix/suffix â numbering. The original file extension is always preserved.
Contents stay intact
Only the file names change â the bytes inside each file are copied untouched into the ZIP. It's safe for documents, images, code, anything.
Private & local
Files are read and re-zipped entirely in your browser; nothing is uploaded to a server.
Frequently Asked Questions
Common questions about the Bulk File Renamer.
What renaming rules are supported?
Find-and-replace, prefixes, suffixes, sequential numbering with zero-padding, lower/upper case, and converting spaces to dashes or underscores.
Does renaming change the file contents?
No. Only the file names change; the bytes inside each file are copied untouched into the downloaded ZIP.
Are my files uploaded?
No. Files are read and re-zipped entirely in your browser â nothing is sent to a server.