No uploads · runs in browser
Bulk File Renamer
Rename many files at once with find-and-replace, prefix, suffix, case rules and sequential numbers.
Drop files here, or click to pick (multiple allowed)
Favorite it to find it fast on home
When to use it
IMG_2031.jpg → trip_01.jpg: combine find-and-replace with numbering
invoice final.pdf → 2026_invoice_final_v2.pdf: tidy up with prefix and suffix
Replacing spaces with underscores avoids upload errors
How to use it
1Step 1Pick a file in File name list, or drag and drop it
2Step 2Press the button and it is done
3Step 3Download the result, or send it with the share button
If the result looks off
The file will not open
Check that the format is supported. If it is password protected, unlock it and try again.
I do not like the result
Your original is untouched — change the options or preset and try again.
Frequently asked questions
Does it rename my actual files?
Browsers cannot rename files in place, so it builds a ZIP with the new names for you to download.
Can I use regular expressions?
Yes. Turn on regex and it replaces every match globally.
What if two files end up with the same name?
Duplicates automatically get (2), (3) appended so nothing is overwritten.