DuoBolt for Mac

DuoBolt is a high-performance desktop application for reclaiming disk space, with two engines. The first identifies duplicate files byte-for-byte, using a multi-threaded BLAKE3 engine that processes folders, codebases, design archives, external drives and NAS volumes with uniform accuracy at any scale. The second finds similar photos — bursts, edits, re-saves, screenshots of the same thing — and groups and ranks them using AI that runs entirely on the machine.

The workflow is intentionally simple and review-first:

• Select the locations to scan.
• Review results in a two-column layout, filtered by name, type, extension, tag or size.
• Act safely — Trash, Delete, Archive, Copy, or Replace with clone, all recorded and restorable.

Sync Folders compares two folders by their contents, shows every difference side by side, and brings them in line: mirror either way, or both ways. Both ways keeps a record of the last sync, so it knows which side changed; a file changed on both sides is a conflict that waits for a decision, and removals go to the Trash.

AI Curation ranks a group of near-identical shots and explains each pick: eyes open, smiling, face sharpness, framing. It reads RAW files directly from Canon, Nikon, Sony, Fuji and more. Nothing is uploaded, no account is required, and no network connection is used for analysis.

DuoBolt includes an Operations History with session tracking, allowing users to review past cleanup operations, restore files when needed, and clean up fully recovered sessions. On macOS it detects APFS clones, so the space it reports is the space the disk actually frees, and Replace with clone turns a marked copy into a clone of the one kept: both files stay where they are, and the disk stores them once.

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.

Every download starts with a 7-day Pro trial. After it ends the application keeps working: scans, comparisons and results stay complete and unlimited, and a single operation — a removal, a clone run or a sync — is capped at 25 files or 500 MiB. A one-time license removes the cap — Standard for duplicates and syncing, Pro for similar photos and AI Curation. There is no subscription.