Audience
Individuals and professionals who need accurate duplicate detection on Windows and macOS: photographers and anyone culling large photo libraries, alongside developers, IT staff and creative teams working with archives, codebases, external drives or NAS volumes.
About DuoBolt
DuoBolt is a high-performance desktop application for finding duplicate files and similar photos, on macOS and Windows.
Exact duplicates are proven byte-for-byte by a multi-threaded BLAKE3 engine — never filenames, metadata or heuristics — across folders, codebases, archives, external drives and NAS volumes, with uniform accuracy at any data size.
A second engine groups photos that merely look alike: bursts, edits, re-saves. AI Curation ranks each group and names every measure it used — face sharpness, exposure, eyes open, framing. It runs entirely on your machine: no upload, no account, no network.
The workflow is intentionally simple:
• Choose the locations to scan
• Review results with clear contextual grouping
• Remove only what you select — deletions go to the system Trash and can be reverted
Free to use. Every download starts with 7 days of Pro; afterwards DuoBolt keeps scanning and showing everything it finds, and caps only what a single operation can move.
Pricing
limits only how many files a single operation moves. Every installation begins
with 7 days of unrestricted Pro.
Standard — $34.99 one-time. Removes the per-operation limit.
Pro — $64.99 one-time. Adds similar-photo grouping across every group, plus
AI Curation throughout.
Both are one-time purchases covering 2 machines, with a 30-day refund. All 2.x
updates are included. No subscription.