Rename many files at once
Drop a folder, set the rules and see every new name before you save a ZIP or a rename script.
- Runs on your device
- No sign-up
- Works offline after a visit

Or rename the files on your computer: copy a script and run it in the folder.
Show the shell script
Show the PowerShell script
How to rename many files at once
- Drop your files, or a whole folder, on the mat.
- Turn on the rules you need and check the new names in the table.
- Download renamed copies as a ZIP, or copy a script and run it in the folder.
Questions
Are my files uploaded?
No. The names are read and the renamed copies are built in your browser. Nothing is sent anywhere, and your original files are not changed.
How do I rename the files on my own computer?
Copy the shell script (macOS and Linux) or the PowerShell script (Windows) and run it inside the folder that holds the files. Each line renames one file, and a name already in use is never overwritten.
Where does the photo date come from?
For JPEG photos it is the date the camera wrote into the file (EXIF DateTimeOriginal). Files without that date use their last-modified date, and other formats always use it.
What do the warnings in the table mean?
Two files would end up with the same name, a name is empty or longer than 255 bytes, it is a Windows reserved name such as CON, or it has characters Windows does not allow. Those rows block the ZIP and the scripts until the rules are changed.
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