Batch rename at scale
Rename thousands of files and folders in a single run without slowing down your workflow using safe background threads.
Photos, videos, music, documents and more
Core features
Efficient File and Folder Renamer With 100+ Customizations
Renamer combines a minimal, modern interface with powerful rename rules. Stack multiple actions, preview results in real time, and apply changes when everything looks right.
Flexible patterns
Combine prefix and suffix, case conversion, sequential numbering, advanced find and replace, and regular expressions.
100 plus customization options
Safe by design
Files are never deleted. Renamer only changes names and keeps everything local on your device for privacy.
100 percent safe batch rename tool
File Renamer for Mac
Renamer for Mac gives you a clean, native macOS experience for bulk file renaming. Build rename rules visually and see changes instantly before renaming.
- Lightweight, native Mac interface
- Rename files and folders in your projects and libraries
- All operations run locally for privacy and speed
Bulk File Renamer for Windows
Use Renamer on Windows for fast and reliable batch file renaming with a native interface. Apply multiple rules, sort by patterns, and keep complex libraries organized.
- Advanced batch file renamer for Windows
- Rename folders, photos, music and documents together
- Live preview before you commit changes
Everything included
All Renamer Features at a Glance
Every feature is included in both plans. The free version is only limited by file count, not functionality.
How it works
Mass Rename Files in Three Simple Steps
Whether you are cleaning up photo folders, music libraries, or project assets, Renamer keeps the workflow clear and predictable from start to finish.
1
Add files and folders
Add entire folders or select individual files. Renamer lists them instantly and lets you filter by name or file type.
2
Build your rename rules
Combine simple or advanced rules. Add prefixes and suffixes, convert case, insert numbers, or run regular expression replacements.
3
Preview and apply
Review live previews of every new name, confirm that everything looks correct, then apply the rename with a single click. Files stay in place and only names change.
Tip: you can refine rules as many times as you like before committing.
Pricing plan
Simple and Straightforward Pricing
Start with the free plan for basic file renaming, then upgrade to a paid license when you need more power and device activations.
Free
Try all features with file limit
Free
Includes all premium tools. Limited to 10 files per operation.
- ✓ All rename features included
- ✓ Regex and advanced rules
- ✓ Live preview
- ✓ Folder renaming
- ✓ Limited to 10 files per batch
Best value
Standard
Unlimited power with permanent access
$39.99 one time
No subscriptions. No file limits. Lifetime ownership.
- ✓ Rename unlimited files per batch
- ✓ All advanced rename modules enabled
- ✓ Commercial and business usage rights
- ✓ Use across personal and work machines
- ✓ Advanced regex and pattern engine
- ✓ Custom counters, tokens and variables
- ✓ Metadata based renaming for images
- ✓ Undo history and recovery protection
- ✓ Lifetime updates for your version
- ✓ Priority email support
- ✓ 3 device activation included
Help & Support
Frequently Asked Questions
Answers to common questions about Renamer, how it handles files, and what to expect from batch renaming on Windows and Mac.
Renamer is an advanced, lightweight batch file renamer for Windows and Mac.
It helps you rename many files and folders at once using patterns, rules,
and live previews.
No. Renamer is a rename only tool. It changes names but does not delete
files
or move them to other folders, which keeps your data safe.
Yes. Renamer shows a live preview of the new names for every file. Basic renaming applies changes immediately when you click the button, without a preview, but it includes **Undo** and **Undo All** options to revert changes if needed. For advanced renaming, you can adjust rules and review the preview until everything looks correct before applying the changes.
Renamer is available for both Windows and macOS. Each version is designed
to feel native on your system.
File operations happen locally on your computer.
Renamer does not need to upload your files to rename them.
Yes. Renamer supports advanced find and replace with regex for complex
renaming scenarios and power users.
Renamer is built to handle large batches, including thousands of files,
depending on your system resources and disk speed.
Yes. You can include folders in your selection and apply the same or
separate
rename rules to them.
No. Renamer works entirely offline on your local machine.
Your files, folders, and filenames are never uploaded, scanned, or sent to
any server.
Yes. Renamer is designed with safety in mind.
It previews all changes before applying them and only modifies filenames,
not file contents or locations.
Yes. Renamer provides a live preview so you can review all filename changes
before applying them. This helps prevent mistakes and unwanted renames.
Yes. Renamer is optimized to handle large batches of files and folders
efficiently,
making it suitable for photographers, developers, and power users.
No. An internet connection is not required for renaming files.
Internet access is only needed for downloading the app, activating licenses,
or receiving updates.
Yes, Renamer includes built-in safeguards such as previews and confirmation steps, along with both Undo and Undo All options to easily revert changes. However, we recommend backing up important files before performing large rename operations.
Renamer offers simple licensing options. The Standard license is a one time
purchase that includes lifetime access to the version you buy, with no recurring fees.
No. Renamer is a lightweight native application designed to use minimal
system resources,
even when processing large batches of files.
Yes. Renamer is designed for both personal and professional use,
including photographers, developers, content creators, and businesses.
Guides & tutorials
Learn more about batch file renaming
Step by step articles show how to use Renamer and how to organize your file system with bulk renaming on Windows and Mac.
Windows
How to rename multiple files at once
A complete guide to bulk renaming on Windows and how Renamer speeds up the whole process.
File types
How to change a file type in Windows 11
Learn easy methods to change extensions and use Renamer to keep file names consistent.
Performance
Batch file renamer guide
Best practices for using a batch file renamer to keep projects, photos and downloads tidy.
Need help?
Questions about Renamer or your license
Reach out via the contact page if you need help with downloads, licenses, or using Renamer with large file sets.
Support email: support@renamer.io
✉ Contact support