# Batch Rename Files

Turn IMG_4821.JPG, IMG_4822.JPG … into Wedding 01.jpg, Wedding 02.jpg in one go, or clean up messy names before sending. Preview every new name before anything changes.

_Source: https://sharelargefilesfree.com/tools/batch-rename-files · Updated 2026-09-29_

**Quick answer:** This batch renamer gives many files new names from a pattern: {name} for the original name, {n} for a number, {date} for the file's date, plus find and replace, letter case and spaces. It works in your browser on files of any type, and you download the renamed files as one ZIP or one by one. Nothing is uploaded.

## How to use it

1. Choose or drop the files, and drag them into the order you want them numbered.
2. Type the new name, using {name}, {n} and {date}; watch the preview.
3. Optionally find and replace text, change letter case or swap spaces for dashes.
4. Press Rename files and download the ZIP, or send the renamed files with a link.

## Patterns you can use

| Pattern | Before | After |
| --- | --- | --- |
| `Holiday {n}` | IMG_4821.JPG | Holiday 01.jpg |
| `{date} {name}` | report.pdf | 2026-10-01 report.pdf |
| `Client-{n}-{name}` | scan.png | Client-01-scan.png |
| Find `IMG_`, replace with nothing | IMG_4821.JPG | 4821.jpg |

The extension is always kept, so files keep opening in the right app. Numbers get leading zeros automatically (01 … 99, 001 … 999) so they sort correctly; choose the digits yourself if you prefer.

## Instant, even for large videos

Renaming doesn't change what is inside a file, so the tool never re-reads or re-encodes anything: a folder of 4K clips is renamed as fast as a few photos. You get the files back under their new names, bundled in one ZIP or downloaded one by one, and the originals on your device stay as they are.

## Names that work everywhere

Characters that Windows or macOS don't allow in file names (`\ / : * ? " < > |`) are removed, and two files can never end up with the same name: the second one gets “(2)”. Replace spaces with dashes or underscores for names that are friendly to websites and command lines.

## Frequently asked questions

### How do I rename many files at once?

Add them, type a pattern such as Holiday {n}, check the preview and press Rename files. Download the renamed files as a ZIP.

### Does renaming change the files?

No. Only the names change; the contents are exactly the same.

### Can I number files in a specific order?

Yes. Drag the files into order before renaming; {n} follows that order.

### Are my files uploaded?

No. Everything happens in your browser.

### Can I keep the original name and add a number?

Yes. Use a pattern like {name} {n} or {n} {name}.