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Read Article →Add Prefix / Suffix to File Names Fast & Private
Batch add text before or after file names — dates, version tags, project codes and more. 100% client-side — your files never leave your device.
Start Adding Prefix / Suffix →Add Prefix / Suffix to File Names
Upload files, enter a prefix and/or suffix, preview the renamed files and download as ZIP
Click or drag files here
Supports any file type (max 100MB per file)
Text added to the beginning of every file name
Text added to the end (before extension)
About the Add Prefix / Suffix Tool
The Add Prefix / Suffix tool lets you batch-insert text at the beginning or end of any number of file names instantly. Need to tag every file with a date, project code, client name, or version number? This tool does it in one click without touching the file content or extension.
Like all our tools, everything runs locally in your browser. No files are uploaded, no data is sent anywhere, and the processing is instant regardless of your internet speed.
Prefix, Suffix, or Both
You can add a prefix (text before the name), a suffix (text after the name but before the extension), or both at the same time. For example, adding prefix "2026_" and suffix "_final" to "report.pdf" produces "2026_report_final.pdf". The tool always preserves the original file extension.
Optional Sequential Numbering
Enable the numbering option to automatically add sequential numbers (1, 2, 3…) to each file. You can choose whether the number appears as part of the prefix or the suffix, and pick your preferred separator — underscore, hyphen, dot, or space.
100% Client-Side Processing
No File Upload Required
Prefix + Suffix + Numbers
Completely Free Forever
Last Updated: April 13, 2026 | Author: File Rename Online Team
How to Add Prefix / Suffix in 3 Steps
1
Upload Files
Select or drag multiple files into the upload area. All file types are supported — images, documents, videos, audio and more.
2
Enter Prefix / Suffix
Type the text to add before and/or after each file name. Optionally enable sequential numbering. The live preview shows the results instantly.
3
Download ZIP
Click the button and your renamed files are packaged into a ZIP archive and downloaded instantly. No server round-trip needed.
Who Needs to Add Prefix or Suffix to File Names?
📸 Photographers
Add date prefixes like "2026-04_" or client names to entire photo shoots. Deliver organised galleries that clients can sort effortlessly.
📄 Business Teams
Tag invoices, contracts and reports with project codes or department prefixes for consistent file management across shared drives.
💻 Developers
Add version suffixes ("_v2", "_prod") or environment prefixes ("staging_", "prod_") to configuration files, assets and deployment packages.
🎓 Students & Educators
Prefix assignment files with course codes or add semester suffixes to keep study materials organised across terms and subjects.
Why Choose Our Prefix / Suffix Tool
Instant Processing
Files are processed in your browser with zero upload time. Even hundreds of files are renamed in under a second.
100% Private
Your files never leave your device. No servers, no tracking, no cookies — total privacy guaranteed.
Works Everywhere
Fully responsive design works on desktops, tablets and smartphones. No app installation required.
Sequential Numbers
Optionally add auto-incrementing numbers as part of the prefix or suffix with your choice of separator.
Completely Free
No hidden costs, no signup, no limits. Add prefix and suffix to as many files as you need.
Live Preview
See original and renamed names side-by-side before downloading. What you see is what you get.
Frequently Asked Questions
What is a prefix and suffix in file naming?
A prefix is text added before the file name (e.g. "2026_report.pdf") and a suffix is text added after the name but before the extension (e.g. "report_final.pdf"). You can use either or both.
Does it change the file content?
No. Only the file name is modified. The file content, quality, metadata and internal structure remain completely untouched.
What happens to the file extension?
Extensions are always preserved. The prefix is added before the name and the suffix is inserted between the name and the extension.
Can I add both prefix and suffix at once?
Yes! Fill in both fields and the tool applies them simultaneously. For example, prefix "project_" + suffix "_v2" turns "report.pdf" into "project_report_v2.pdf".
Are my files uploaded to a server?
Absolutely not. Everything runs inside your browser using JavaScript. Files are read, renamed and zipped on your device.
How does sequential numbering work?
When enabled, each file gets a sequential number (1, 2, 3…). You can place the number as part of the prefix or suffix, and choose your separator.
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