Bulk file renamer — rename many files by a pattern
Rename a batch of files by a pattern and get them back as a ZIP. It runs entirely in your browser (0 uploads, works offline).
How to use it
- Add files and drag to set the order.
- Enter a pattern with
{n},{name}or{ext}. - Download the renamed ZIP.
FAQ
How do I rename multiple files at once, for free?
Add the files, set a pattern like img-{n}.{ext}, and this page renames each in order and returns them as a ZIP — on your device with no upload.
What tokens can I use in the pattern?
{n} for a zero-padded sequence number, {name} for the original name, {ext} for the extension. Combine them freely.
Are my files uploaded anywhere?
No. Renaming happens entirely in your browser and nothing is transmitted or stored, which you can verify by turning off your Wi-Fi.
Does it change the file contents?
No — only the filenames change; the bytes are copied unchanged into the ZIP.
Limits
Renames by a numeric pattern; find-and-replace within names and case changes are not offered here.
Related
The create-ZIP tool bundles files; the file splitter breaks one file into parts.
Bookmark this page (Ctrl+D, or ⌘D on Mac) or install the app — it works offline the next time you need it.