Hyperspace 1.7.1 dedupes files on macOS using space clones

Hyperspace is a macOS app sold through the Mac App Store that scans one or more folders for files with identical contents. When it finds duplicates, it can reclaim the disk space used by all but one copy of each set, without removing any of the files themselves. It does this by converting the duplicates into space-saving clones, a standard feature of the macOS file system; the app's FAQ notes that the Finder performs the same trick when a user duplicates a file, so Hyperspace is automating and generalizing an operation macOS already supports natively.

The app defines its own workflow in three steps: scanning (examining files to find candidates for reclamation), review (checking what was found before anything changes), and reclamation (replacing the identical files with clones of each other to free the space). The current release is 1.7.1, published August 9, 2026, which improved recovery when a clone operation fails before the target file has been modified and fixed layout issues in the settings and purchase screens. It followed version 1.7 on August 6, 2026, a larger update focused on reliability: better reclamation efficiency, improved scan source validation and error handling, faster search in the review and errors windows, better handling of locked and append-only files, added post-reclamation verification of resource fork storage sharing, and a run of bug fixes covering state sync in the review window, an acknowledged abort that could resurrect itself, byte accounting during aborted operations, celebration animations firing on an aborted reclamation, a dialog loop on aborted scans, clone consolidation when reclaiming three or more identical file families, a disabled checkbox in the review window's column header, and multiple main windows appearing at once.

The project's changelog runs back to version 1.0 on February 24, 2025, and shows a steady cadence of releases, roughly monthly, adding features such as cloud storage support (iCloud Drive, OneDrive), scanning inside package directories like Photos and Logic Pro libraries, Shortcuts support, document commands, and file-system-compressed file handling, interleaved with recurring rounds of bug fixes and performance tuning.

Key facts

Hyperspace scans folders for files with identical contents and reclaims the disk space of all but one copy per set, without deleting any file, by converting duplicates into macOS space-saving clones.
Version 1.7.1 shipped August 9, 2026; it improved recovery when a clone operation fails before the target file has been modified, and fixed settings and purchase screen layout issues.
The preceding 1.7 release (August 6, 2026) fixed roughly a dozen bugs tied to aborted scans and reclamations, plus clone consolidation when reclaiming three or more identical file families.
The app's workflow is scan, review, then reclaim; a progress popover appears when scanning or verifying files over 250 MB.
The changelog traces back to the 1.0 release on February 24, 2025, showing roughly monthly updates since.

Why it matters

Deduplication tools normally have to choose between speed and safety: either they delete duplicate files outright, which risks losing something the user still needed under a different path, or they leave duplicates alone and waste disk space. Hyperspace's approach, converting duplicates into space-saving clones rather than deleting them, keeps every file accessible at its original path while the underlying storage is shared. The FAQ frames this as automating something the Finder already does when a user manually duplicates a file, rather than introducing a new file-system mechanism.

Who it affects

Mac users who want to recover disk space from duplicate files, such as repeated exports, backups, or copies scattered across cloud-synced folders, without deleting anything or trusting a tool to make an irreversible choice for them. The app also has to handle files that other processes are modifying, cloud storage locations like iCloud Drive and OneDrive, package-style directories such as Photos and Logic Pro libraries, and locked or append-only files, based on the range of fixes and features listed in its changelog.

How to use it

Hyperspace is distributed through the Mac App Store. Its workflow has three named stages: scanning, which examines chosen folders for files that are candidates for reclamation; review, which lets the user check what was found before anything is changed; and reclamation, which replaces the identical files with clones of each other to free the space. Recent versions added the ability to save and load sets of scan sources as files and to trigger scan, review, and reclaim actions from the File and app menus, plus Shortcuts support. The source text does not state a price or subscription terms.

How solid is it

The version history is long and detailed: 1.0 shipped February 24, 2025, and the app has had roughly monthly point releases since, reaching 1.7.1 on August 9, 2026. Recent cycles read as a maturity push rather than new features: 1.7 alone fixed close to a dozen distinct bugs around aborted scans and reclamations, byte accounting, and clone consolidation, and 1.7.1 specifically hardens recovery from a failed clone operation. That density of fixes around the exact operation that touches a user's files, reclamation, points to a project taking edge cases in file manipulation seriously rather than shipping a thin wrapper around a system API.

Risks and caveats

The source text gives no price or subscription cost and no figures on how much disk space users typically reclaim, so neither can be stated here; the only name attached to the developer is the site's own branding, Hypercritical, at hypercritical.co, with no further company details given. The changelog itself is also a record of past fragility around the reclamation step: earlier versions had bugs that could let an acknowledged abort resurrect itself, cause incorrect savings calculations when a reclamation was interrupted, or leave byte accounting wrong after an abort, all since fixed. Anyone relying on the tool for a large or important library should weigh that this is delicate file-level surgery whose edge cases the project itself is still actively finding and closing.

“Hyperspace uses a standard feature of the macOS file system: space-saving clones. The Finder does the same thing when you duplicate a file.”

— Hyperspace FAQ