Trim old Time Machine backups and reclaim disk space.
Caution
macOS 27 Golden Gate is not yet supported. The app is actively tested on macOS 26 Tahoe only. Issues on macOS 27 are known and will be addressed in a future update.
- Trim snapshots — delete old backups from any Time Machine volume
- Reclaim space — remove unwanted snapshots and free up disk
- macOS-native — lightweight, native SwiftUI app
"TimeMachineTrimmer … un petit outil … C'est simple et c'est gratuit." — VVMac (FR)
brew tap ricardoleal/tap
brew trust ricardoleal/tap/time-machine-trimmer
brew install --cask time-machine-trimmerDownload the latest .dmg from Releases, open it, and drag the app to /Applications.
Warning
The app is not signed with a paid Apple Developer ID certificate. If macOS blocks it, right-click the app in /Applications and select Open, then click Open in the dialog.
Open TimeMachineTrimmer.xcodeproj in Xcode 26+ on macOS 26 (Tahoe).
Important
Change the signing team to your own, otherwise entitlements may not persist.
Have an idea or found a bug? We'd love your contribution!
- Fork this repository
- Create a feature branch (
git checkout -b feature/amazing-feature) - Make your changes and test thoroughly
- Push to your fork (
git push origin feature/amazing-feature) - Open a Pull Request from your fork to
main
- Discuss first — Open an issue to discuss your idea before starting work
- Follow the template — Our PR template will guide you through the submission process
- Keep it focused — One feature or fix per PR
For detailed instructions, see CONTRIBUTING.md.
See LICENSE.