Camera and phone photos
Turn IMG_0412.JPG and DSC_8841.JPG into names that say where and when: goa-2026-0412.JPG.
Rename a whole folder of files in one go
Type a find and replace, add a prefix or suffix, change the case, and see every new name before anything changes. The files stay on your computer the whole time.
Works in Chrome, Edge, Brave and Opera on a computer. Nothing is uploaded and there is no sign-up.
What it does, and what it will not do
- Live preview
- Every new name is shown next to the old one as you type, so you can check all of them before you commit.
- Name clash protection
- If a new name is already taken, or two files would get the same name, the tool stops and shows which files clash.
- Extensions stay safe
- Rules apply to the name before the last dot, so .jpg and .pdf endings are not touched unless you choose to.
- Runs on your computer
- The browser renames the files in place. No upload, no zip to download, and no file limit set by this tool.
- Honest results
- If the browser refuses to rename a file, you get that file name and the reason, not a false success message.
- Free
- No sign-up, no watermark, and no cap on files per folder from us.
Rename files in four steps
Open the folder
Choose the folder that holds the files. Your browser asks you to allow changes to that one folder.
Set the rules
Fill in find and replace, a prefix, a suffix or a case change. Leave the rest empty.
Check the preview
Read down the New name column. Any clash is flagged and the rename button stays off until it is fixed.
Rename
Press the rename button. The list refreshes to show what is in the folder now.
When a batch rename saves an evening
Scanned documents
Add a year or client code in front of a folder of scans so they sort properly and are easy to find.
Downloaded files
Strip the same junk out of a batch of downloads, such as "(1)" or a website name, with one find and replace.
Files for uploading
Lowercase everything before uploading to a website or server that treats Photo.JPG and photo.jpg differently.
How local bulk renaming works
Most online renamers make you upload every file, then download a zip of renamed copies. This one skips that. You give the page access to a folder, it reads the file names, and it asks the browser to rename each file where it already sits. Your files are never copied or sent anywhere, which is why there is no waiting on an upload.
The rules run in a fixed order for every file: find and replace first, then the case change, then the prefix and suffix are added. The extension is set aside during all of this unless you choose to include it, and it is put back on the end.
Renaming rules explained
| Rule | What it does | Example |
|---|---|---|
| Find text and replace with | Replaces every match in the name, and matches exactly, including capital letters | IMG_ becomes Goa- |
| Add prefix | Puts text at the start of every name | 2026- in front of invoice.pdf gives 2026-invoice.pdf |
| Add suffix | Puts text at the end of the name, before the extension | -final on report.docx gives report-final.docx |
| Change case | Converts the name to lowercase or UPPERCASE | Holiday Photo.jpg becomes holiday photo.jpg |
To remove text, use find with an empty replace box. To rename a whole batch to one pattern, run the tool more than once: for example strip a camera prefix first, then add your own.