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.
Other Popular Alternatives & Related Software
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- Find duplicate photos, videos, audio, Word documents, PDFs, ebooks, archives, and other files
- Use AI to detect similar photos, and let you adjust the similarity level for image comparison
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- Scan for duplicate files within and across folders/drives
- Allow you to exclude folders and files from the scan
- Display duplicate files for easy view, with side-by-side image preview
- Automatically select all but one file for deletion in each group of duplicate files
- Also offer various selection rules, including a rule based on on-device AI-powered photo quality scoring
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MindGems Duplicate Image Finder
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Skimrr
Skimrr is a privacy-first desktop application for macOS and Windows that helps you clean up your photo library by finding exact duplicates, similar shots, and blurry photos.
Unlike cloud-based tools, Skimrr processes everything locally on your own machine. Your photos are never uploaded or analyzed remotely, ensuring complete privacy.
Key features include:
Smart duplicate matching: Identifies exact byte-for-byte copies and visually similar photos (like a RAW file and its JPEG export).
Intelligent suggestions: Automatically suggests the best version to keep based on format (RAW > JPEG), resolution, and sharpness.
Advanced blur detection: Analyzes images tile by tile to distinguish between a missed focus and an intentional soft background (bokeh).
Safe workflow: Files are moved to an internal local trash and can be restored to their exact original folders.
Side-by-side review: Zoom in up to 200% across multiple photos simultaneously to compare sharpness.
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dupeGuru
dupeGuru is a cross-platform (Linux, OS X, Windows) GUI tool to find duplicate files in a system. It’s written mostly in Python 3 and has the peculiarity of using multiple GUI toolkits, all using the same core Python code. On OS X, the UI layer is written in Objective-C and uses Cocoa. On Linux & Windows, it’s written in Python and uses Qt5. dupeGuru is a tool to find duplicate files on your computer. It can scan either filenames or contents. The filename scan features a fuzzy matching algorithm that can find duplicate filenames even when they are not exactly the same. dupeGuru runs on Mac OS X and Linux. Find your duplicate files in minutes, thanks to its quick fuzzy matching algorithm. dupeGuru not only finds filenames that are the same, but it also finds similar filenames. It has a special music mode that can scan tags and shows music-specific information in the duplicate results window.
Learn more about dupeGuru
Pricing
Starting Price:
$34.99 USD (one-time)
Pricing Details:
Free to use, with no account. Full scanning and complete results; the free tier
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.
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.
Free Version:
Free Version available.
Free Trial:
Free Trial available.
Integrations
No integrations listed.
Company Information
Qoncept Apps
Founded: 2022
Spain
duobolt.app/
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Product Details
Platforms Supported
Windows
Mac
Training
Documentation
Support
Online
DuoBolt Frequently Asked Questions
Q: What kinds of users and organization types does DuoBolt work with?
DuoBolt works with these users and organization types: Mid Size Business, Small Business, Enterprise, Freelance, Nonprofit, Government, and Startup.
Q: What languages does DuoBolt support in their product?
DuoBolt supports these languages: English.
Q: What kind of support options does DuoBolt offer?
DuoBolt offers support via online.
Q: What type of training does DuoBolt provide?
DuoBolt provides training in the form of documentation.
Q: Does DuoBolt offer a free trial?
Yes, DuoBolt offers a free trial.
Q: How much does DuoBolt cost?
Pricing for DuoBolt starts at $34.99 USD (one-time).
Q: What pricing for support is available for DuoBolt?
DuoBolt offers support included with purchase.
