Datemaster
Español
Français
Português
Deutsch
Italiano
日本語
简体中文
한국어
РусскийWorks with any file
Photos, videos, documents, anything. Change when a file was created, when it was last modified, or both.
Change the date of any file on your Mac.
Pick a date, drop your files, and you're done. Datemaster changes the created and modified dates your Mac shows, and the dates saved inside PDF and Office documents too.
Download for Mac
Inside documents too
PDF, Word, Excel and PowerPoint files also keep dates inside them. Datemaster updates those as well, so everything matches.
Undo anytime
A backup of every file is kept before it changes. Changed your mind? One click puts everything back.
Private by design
Your files never leave your Mac. No account, no internet connection, no tracking.
How it works
- 1
Add your files
Drag them onto the window, or click Choose Files.
- 2
Pick a date
Type it, use the calendar, or tap a shortcut like Last month.
- 3
Click Update
Every file gets its new date. You see the result right away.
Get Datemaster
Free for Mac. Version 1.0.0.
Download for MacInstalling
- Open the downloaded file and drag Datemaster into Applications.
- Open Datemaster. The first time, your Mac may say it can't check the app. Go to System Settings, then Privacy & Security, and click Open Anyway. You only need to do this once.
Questions
How do I change the creation date of a file on a Mac?
Open Datemaster, drop the file on the window, pick the new date and click Update. Finder can't edit these dates, and Datemaster does it without Terminal commands or developer tools.
Can it change the dates inside PDF and Word documents?
Yes. For PDF, Word (.docx), Excel (.xlsx) and PowerPoint (.pptx) files it also updates the created and modified dates stored inside the document, so the file and its contents agree.
Is it really free?
Yes. No trial, no subscription, no account.
Can I keep my original files untouched?
Yes. Choose Save copies and Datemaster makes changed copies next to your files, leaving the originals as they are.
Why does my Mac warn me the first time?
The app isn't notarized by Apple yet, so macOS asks you to confirm once. The steps are under Installing above.
Are there files it can't change?
Digitally signed or password-protected documents keep their contents untouched. Datemaster tells you which ones and can still change the dates your Mac shows for them.