Free Online Bulk File Renamer
Use this free bulk file renamer to rename files instantly in your browser. Add prefixes, suffixes, or replace text with no file uploads needed. Try it now.
About Bulk File Renamer
Organizing large collections of documents, images, or media files one by one is time-consuming and prone to errors. This bulk file renamer lets you modify dozens or hundreds of file names simultaneously using flexible renaming rules like text replacement, prefixes, suffixes, and sequential numbering.
Designed for photographers, digital marketers, developers, and office professionals, the tool operates entirely inside your web browser. Your files are processed locally on your device without being uploaded to any external server, ensuring maximum speed and complete data privacy.
Key features
- Add custom prefixes or suffixes to filenames
- Find and replace specific characters or words
- Append sequential numbering for organized sorting
- Processes files locally without uploading to servers
- Live preview of modified names before saving
- Export renamed files together in a zip archive
How to use Bulk File Renamer
- Select or drag and drop your files into the renamer.
- Choose a renaming rule such as prefix, suffix, or find and replace.
- Enter your desired text modifications and numbering settings.
- Inspect the real-time preview to verify the new file names.
- Click the export button to save your renamed files.
Who is it for?
- Photographers adding dates and project codes to raw image collections
- Content creators organizing video clips and audio tracks by episode
- Office teams standardizing invoices, contracts, and document naming conventions
- Developers batch-cleaning asset filenames before deploying to a project
Frequently asked questions
Is the bulk file renamer free to use?
Yes, this tool is completely free to use with no account creation or subscription required.
Are my files uploaded to Doffl servers?
No, all file renaming operations run client-side directly within your web browser. Your files never leave your computer.
Can I add sequential numbers to my filenames?
Yes, you can configure sequential numbering with custom starting numbers and padding to keep your files properly sorted.
Can I replace specific words across multiple file names?
Yes, use the find and replace rule to search for specific words, symbols, or spacing and swap them with your replacement text.
What happens to my original file extensions?
Original file extensions are preserved automatically by default so your operating system continues to recognize each file type.