Bulk File Renamer Online — Free, Any File Type
Rename hundreds of files in one go — images, PDFs, videos, audio, docs, anything — using your own SEO keywords. No installs, no upload, no signup.
Why use a bulk file renamer online?
Works on any file type
Images, PDFs, MP4s, ZIPs, spreadsheets — if it has a filename, this tool can rename it.
True bulk speed
Hundreds of files renamed in seconds. Browser-native — no server bottleneck.
Private by design
Files are processed locally. Nothing is uploaded, logged, or stored.
ZIP + single-file download
Grab the entire batch as a ZIP, or download files individually with their new SEO names.
How it works
1.Drop your files
Drag a whole folder in, or pick files manually.
2.Add naming keywords
Type or paste keywords — every filename is built from your keywords only.
3.Download all renamed
ZIP everything, or download individual files. Mapping CSV included.
Good vs bad filename examples
Bad
invoice_final_v3 (1).pdfGood
acme-2025-q1-invoice.pdfBad
Video_20240612_142233.mp4Good
product-demo-wireless-headphones.mp4Bad
Untitled.docxGood
ecommerce-content-strategy-2025.docxFrequently asked questions
Is this bulk file renamer really online and free?
Yes. It works in any modern browser, requires no signup or download, and is unlimited and free forever.
How many files can I rename at once?
Hundreds at a time. The tool caps individual files at 100MB and total batches at 2000 files to keep the browser responsive.
Which file types are supported?
Any file type — images, PDFs, videos, audio, ZIPs, Office docs, code files. Renaming works on the filename, not the file contents.
Are my files uploaded to your servers?
No. All processing happens in your browser. Files never leave your device.
Can I download all renamed files as a ZIP?
Yes. Or download any individual file directly from the preview list.
Rename your files now — free
100% in-browser. No signup. No upload. Your files stay on your device.
Open the renamer →