File Renamer
Batch rename files in your browser
100% Private: All processing happens in your browser. Your files are never uploaded to any server.
Select Files
You can select multiple files at once. Files are not uploaded - all processing happens in your browser.
Renaming Operations
Add Prefix/Suffix
Add text before or after filename while preserving extension
Replace Text
Find and replace specific text in filenames
Add Numbers
Add sequential numbers with custom formatting and padding
Change Case
Convert to uppercase, lowercase, title case, or camelCase
Remove Text
Remove specific text or characters from filenames
Real-time Preview
See changes instantly before downloading renamed files
Frequently Asked Questions
Is it safe to use this file renamer?
Yes, completely safe! Your files never leave your computer. All processing happens in your browser using JavaScript. No files are uploaded to any server, ensuring complete privacy and security.
How do I batch rename files?
Click 'Select Files' to choose multiple files from your computer. Choose a renaming operation (add prefix, add numbers, replace text, etc.), preview the new names in real-time, and click 'Download Renamed Files' to get all files with new names.
What file types can I rename?
You can rename ANY file type - documents, images, videos, audio, archives, code files, spreadsheets, and more. The tool only modifies file names, not contents, so it works with all file extensions.
Is this file renamer free?
Yes, completely free with unlimited use. Rename as many files as you want with no restrictions. All features included, no registration required, and no hidden costs.
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