How to use Batch File Renamer
- Choose the files to include in the rename preview; up to 100 files and 100 MiB total are supported.
- Set a prefix or suffix, decide whether to keep each original base name, and configure numbering or a literal text replacement.
- Review every before-and-after filename, then prepare and download the ZIP. The files on your device are not renamed.
What this tool does
The originals stay on your device; renaming does not change file format.
Example
For invoice-a.pdf and invoice-b.pdf, keep the original names, add a project prefix, and append three-digit numbering to produce a clearly ordered ZIP listing.
Frequently asked questions
Does this rename files in their original folder?
No. It creates a ZIP with the proposed names; the source files on your device are unchanged.
Will changing a filename convert the file format?
No. The original extension is retained. Renaming a .txt file to a name ending in .pdf would not make it a PDF, so use the correct extension for the actual content.
Privacy
Your input is processed in your browser. This version does not send document content to a conversion server and includes no advertising or analytics scripts. Loading the website requires a network connection.
Operator: Francescco Pernice Botta. Contact: klabindustries.hq@gmail.com.
Terms
Use this tool only with content you are allowed to process. Check the result before relying on it.
Contact
Operator: Francescco Pernice Botta. Contact: klabindustries.hq@gmail.com.