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.
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.
Batch rename files at a glance
| Price | Free, no sign-up, no watermark, no daily limit |
|---|---|
| Accepts | Any file |
| Largest file | 4 GB per file, several files at once |
| Where it runs | In your browser: files are never uploaded |
| Works on | Any modern browser on iPhone, Android, Windows, Mac and Linux |
| Send the result | Download it, or send it free with a link or by email (up to 20 GB) |
How to use the batch rename files
- Choose or drop the files, and drag them into the order you want them numbered.
- Type the new name, using {name}, {n} and {date}; watch the preview.
- Optionally find and replace text, change letter case or swap spaces for dashes.
- 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.
How this compares
| This tool | Online converters (e.g. ezyZip or CloudConvert) | Desktop apps (e.g. 7-Zip or WinRAR) | |
|---|---|---|---|
| Your file is uploaded | No | Yes, to their servers | No |
| Install or account | None | Account for some features | Install needed |
| Watermark or daily limits | None | Common on free plans | Depends on the app |
Plans of other services change; check their sites. More file tools.
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}.
Need to send a big file?
Send files up to 20 GB with a download link or by email. Free, no account needed, original quality.
Send large files free