RenameZero
Rename hundreds of files in seconds.
RenameZero is a lightweight batch file renaming utility for Mac. Replace text, add prefixes or suffixes, number files sequentially, change case, and use templates — all with a live preview before any changes happen. Undo any rename with one click. No cloud, no accounts, no subscriptions.
Version 1.0.0 · macOS 13.0+ · June 23, 2026
Lifetime license
2 Macs · one-time
- Lifetime license on up to 2 Macs
- Free updates forever
- 30-day money-back guarantee
- No account required
- macOS Ventura 13.0+
30-day money-back guarantee
Unlock every ZeroApps app — now and all future releases. 10 apps included.
See it in action.
Replace text in filenames with live preview
Add prefix to batch rename files
Free vs Paid
Try it free. Unlock everything with a one-time license.
Everything you need, nothing you don't.
Live preview
See exactly how every file will be renamed before anything changes. Original and new names displayed side by side, updated instantly.
Sequential numbering
Automatically number files with customisable start number, padding length, and separator. Turn photo.jpg into photo_001.jpg in seconds.
One-click undo
Made a mistake? Undo the entire last rename operation with one click. Original filenames are restored instantly.
Folder processing
Import entire folders of files at once. Optionally include subfolders. Filter by file type — images, documents, videos, or custom extensions.
Zero uploads, ever
Every rename operation runs 100% on your Mac. Not a single byte of your files touches the internet.
Pay once, yours forever
No subscriptions. One-time purchase with free updates for life. Try free with up to 20 files before you buy.
Release history
RenameZero 1.0.0 The first release of RenameZero — rename hundreds of files in seconds. # Features - Replace text — find and replace text in filenames with case-sensitive option - Add prefix / suff…
Common questions
What can I do for free?
The free tier includes Replace Text, Add Prefix, Add Suffix, and Live Preview for up to 20 files per session. Activate a license to unlock unlimited files, sequential numbering, remove text, change case, templates, presets, undo, folder import, file type filters, and CSV reports.
What can I do for free?
The free tier includes Replace Text, Add Prefix, Add Suffix, and Live Preview for up to 20 files per session. Activate a license to unlock unlimited files, sequential numbering, remove text, change case, templates, presets, undo, folder import, file type filters, and CSV reports.
What can I do for free?
The free tier includes Replace Text, Add Prefix, Add Suffix, and Live Preview for up to 20 files per session. Activate a license to unlock unlimited files, sequential numbering, remove text, change case, templates, presets, undo, folder import, file type filters, and CSV reports.
What can I do for free?
The free tier includes Replace Text, Add Prefix, Add Suffix, and Live Preview for up to 20 files per session. Activate a license to unlock unlimited files, sequential numbering, remove text, change case, templates, presets, undo, folder import, file type filters, and CSV reports.
What can I do for free?
The free tier includes Replace Text, Add Prefix, Add Suffix, and Live Preview for up to 20 files per session. Activate a license to unlock unlimited files, sequential numbering, remove text, change case, templates, presets, undo, folder import, file type filters, and CSV reports.
Does RenameZero upload my files?
Never. All renaming happens entirely on your Mac. The only network request is license validation, which sends your license key — never your filenames or files.
Does RenameZero upload my files?
Never. All renaming happens entirely on your Mac. The only network request is license validation, which sends your license key — never your filenames or files.
Does RenameZero upload my files?
Never. All renaming happens entirely on your Mac. The only network request is license validation, which sends your license key — never your filenames or files.
Does RenameZero upload my files?
Never. All renaming happens entirely on your Mac. The only network request is license validation, which sends your license key — never your filenames or files.
Does RenameZero upload my files?
Never. All renaming happens entirely on your Mac. The only network request is license validation, which sends your license key — never your filenames or files.
Can I undo a rename?
Yes. RenameZero stores the original and new filenames for every operation. Click Undo Last Rename to restore all original filenames instantly. This requires a Pro license.
Can I undo a rename?
Yes. RenameZero stores the original and new filenames for every operation. Click Undo Last Rename to restore all original filenames instantly. This requires a Pro license.
Can I undo a rename?
Yes. RenameZero stores the original and new filenames for every operation. Click Undo Last Rename to restore all original filenames instantly. This requires a Pro license.
Can I undo a rename?
Yes. RenameZero stores the original and new filenames for every operation. Click Undo Last Rename to restore all original filenames instantly. This requires a Pro license.
Can I undo a rename?
Yes. RenameZero stores the original and new filenames for every operation. Click Undo Last Rename to restore all original filenames instantly. This requires a Pro license.
Will RenameZero damage my file extensions?
No. File extensions are protected by default. The .jpg, .pdf, .docx etc. part of filenames is never modified unless you explicitly enable the Rename Extensions option.
Will RenameZero damage my file extensions?
No. File extensions are protected by default. The .jpg, .pdf, .docx etc. part of filenames is never modified unless you explicitly enable the Rename Extensions option.
Will RenameZero damage my file extensions?
No. File extensions are protected by default. The .jpg, .pdf, .docx etc. part of filenames is never modified unless you explicitly enable the Rename Extensions option.
Will RenameZero damage my file extensions?
No. File extensions are protected by default. The .jpg, .pdf, .docx etc. part of filenames is never modified unless you explicitly enable the Rename Extensions option.
Will RenameZero damage my file extensions?
No. File extensions are protected by default. The .jpg, .pdf, .docx etc. part of filenames is never modified unless you explicitly enable the Rename Extensions option.