DuoBolt overview

DuoBolt is a high-performance desktop application for identifying and removing duplicate files with precision and consistency. It uses a multi-threaded, BLAKE3-based scan engine to process folders, codebases, design archives, external drives, and NAS volumes with uniform accuracy at any scale.

The workflow is intentionally simple and review-first:

Select the locations to scan.
Review duplicate files with clear, contextual grouping.
Delete selected files safely — all deletions go to the system Trash.

DuoBolt includes a Deletion History with session tracking, allowing users to review past cleanup operations, restore files when needed, and clean up fully recovered sessions.

All duplicate detection is performed using byte-for-byte comparison, without relying on filenames, metadata, or heuristics. Results are deterministic, verifiable, and suitable for professional environments where correctness, traceability, and reversibility are essential.

The app includes a 7-day full-feature trial. After the trial period, a valid license is required to continue using the application.

What's new in version 1.4.0

New Features

New “Move to Archive…” action — pick any folder and DuoBolt moves selected duplicates there with their directory structure preserved, instead of sending them to the Trash. Archives appear in Deletion History with a “Review Archive” page to restore from.
New “Exclude archive folders from scans” setting (on by default) keeps archived duplicates out of future scans. Scan Setup also highlights any selected folders that overlap with known archives.
macOS scans now detect APFS clone groups — files that share storage on disk (e.g., from cp, Time Machine snapshots, build caches) — so DuoBolt no longer counts them as recoverable space. Toggleable via Advanced → Performance options, on by default.
Selection size, the Review screen total, the master-folder-rule preview, and delete confirmations all use the new clone-aware accounting, so the bytes you see before clicking “Delete” match what your disk actually frees.
Deletion History distinguishes “freed” (deletes) from “archived” (archives), since archived files still occupy real space at their destination volume.

Improvements

Scan Results header, sort order, and per-group display now show “recoverable” alongside “total” when APFS clones are detected, making it clear which groups actually free space when removed.
Scan-button accent in the Setup screen now uses the app’s semantic gradient for better visual consistency.
On non-APFS volumes (Windows, Linux, HFS+, SMB) clone detection is a no-op — behavior is unchanged.

Fixes

Deletions and archives performed after restoring scan results from a previous session (e.g., closing and reopening the app) now record correctly in Deletion History.

DuoBolt for Mac

DuoBolt overview

The workflow is intentionally simple and review-first:

What's new in version 1.4.0

New Features

Improvements

Fixes

DuoBolt for Mac

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