DiskPress
Compress & Deduplicate Files
Only for Mac
$9.99
Also Included In
Mac
DiskPress brings the power of two storage techniques together on your Mac. Native file compression and APFS file deduplication help you make better use of the disk you already have.
Lossless file compression stores supported files using fewer bytes while preserving their full original contents. macOS reads the compressed data automatically, so your files open in the apps you already use.
File deduplication lets identical files share physical storage. Eligible duplicates can share compressed data too, adding further savings after compression. Each copy keeps its own name and location, and editing one does not change the others.
Your files stay optimized after you quit DiskPress, because macOS handles their storage directly.
- Start with a drop. Drag files or folders into DiskPress or onto its Dock icon for one-time optimization. Review the selected path, file count and existing savings before starting. Open separate progress windows for different destinations and cancel a job when needed. Completed optimizations are kept.
- Make regular optimization part of your routine. Save specific locations and use Optimize Now whenever you choose, or enable automatic monitoring at your preferred interval. Recent File Protection leaves newly changed files for a later cycle. With monitoring enabled, keep working from the menu bar while the main window is closed.
- Understand your results. Overview shows disk capacity, current savings and the split between compression and estimated deduplication savings. Compare your saved locations and track results over the last 24 hours, 7 days and 30 days. Activity explains individual outcomes, including why a file was skipped. Use Rescan to refresh your measurements.
- Choose what gets optimized. Set compression file-size limits, minimum savings and whether to include hidden files. Fine-tune exclusions by file type, wildcard or regular expression. Common compressed media and archive formats are excluded by default.
- Set a pace that fits your Mac. Choose Low CPU, Balanced, Fast or Fastest. Configure separate battery and power adapter profiles, or pause automatic monitoring on battery power.
- Put it to work from Terminal. The built-in CLI gives scripts and AI agents access to the same optimization engine. Scan targets, optimize files and read locations, settings, Activity and savings reports. Built-in help, structured JSON output and clear exit codes support automation. Run without a window or display live progress.
- Keep access in your hands. Authorize the files and folders DiskPress may read and write. Review, add or remove remembered permissions in Authorized Paths. Terminal commands require an existing authorization before they can process a target.
DiskPress verifies file contents and includes recovery checks for interrupted work. Protected system locations and other unsupported files are skipped.
DiskPress does not compress apps or executable files and leaves them unchanged. To compress, archive or restore apps, use App Archiver, also available on the Mac App Store.
All optimization happens locally and works offline. The app has no account, file uploads, analytics, telemetry or Internet access.
Start with mostly stable local folders, such as text documents, completed data exports and files from finished projects. Savings vary with file contents, existing compression and filesystem support.
Requires macOS 10.15 or later and compatible local storage, including supported external drives. Deduplication requires matching files on the same compatible APFS volume.
- This app hasn’t received enough ratings or reviews to display an overview.
- Reduced memory usage when optimizing large folders.
- Made deduplication faster by reusing scan results within the same optimization.
- Added live file counts and clearer progress during duplicate discovery.
- Improved cancellation during deduplication while preserving completed work.
- Fixed savings shown for nested folders when both a parent folder and its subfolder are added.
- Improved handling of files that change or disappear during optimization.
- Faster compression of multiple files within the same folder.
- Fastest mode now scales to your Mac's performance cores.
- Low CPU mode reduces sustained processor use while working on large files.
- Added default exclusions for databases and their journal files.
- Improved handling of files edited by other apps, preserving changes and avoiding unnecessary recovery prompts.
- Inaccessible and read-only files are skipped without unnecessary attention notifications.
- Fixed savings accounting conflicts when saved folder access is refreshed during optimization.
- Disabled file group editing when all available groups are already excluded.
The developer, Ihor July, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ihor July
- Size
- 2.4 MB
- Category
- Utilities
- Compatibility
Requires macOS 10.15 or later.
- Mac
Requires macOS 10.15 or later.
- Mac
- Languages
English and 5 more
- English, German, Simplified Chinese, Spanish, Traditional Chinese, Ukrainian
- Age Rating
4+
- 4+
- Copyright
- © 2026 Ihor July
