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dupeGuru

dupeGuru

An open-source tool for finding duplicate files by name, content, or visual similarity.

softwareDuplicate Findersduplicate file finderfile deduplicationopen source utility
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Our Verdict

Best for

Anyone wanting a free, cross-platform way to find and clean up duplicate files or photos.

Skip if

You need enterprise-scale deduplication across networked or cloud storage.

What is dupeGuru?

dupeGuru is a free, open-source duplicate file finder for Windows, macOS, and Linux. It scans folders by filename or file content to identify exact duplicates, and includes a dedicated Picture mode that finds visually similar images even when they differ in resolution or format. A Music mode adds tag- and metadata-aware scanning for audio libraries, while a customizable matching engine, reference-folder logic, and filtering tools let users review results carefully before choosing to delete, move, or copy the duplicates it finds.

SpecificationsAI-estimated

deploymentDesktop App
open source✅ Yes
api available❌ No
support optionsCommunity documentation, GitHub issue tracker
key integrationsNone (standalone desktop application)

Key Features of dupeGuru

Scans by filename or actual file content to catch duplicates even when files have been renamed.
Includes a Picture mode that finds visually similar images using fuzzy matching, not just byte-identical copies.
Provides a Music mode that reads audio tags and metadata to catch duplicate tracks across a music library.
Lets users mark reference directories so originals in a trusted folder are never flagged for deletion.
Offers adjustable match sensitivity so users can tune how strict or loose duplicate detection is.
Supports deleting, moving, or copying detected duplicates in bulk after manual review.
Runs on Windows, macOS, and Linux, and is distributed as free open-source software.

Use Cases for dupeGuru

1

Cleaning up a cluttered photo library

Users run Picture mode to find near-identical photos from repeated imports or camera backups and free up storage space.

2

Deduplicating a music collection

Music mode identifies duplicate tracks across folders ripped or downloaded from different sources using tag comparisons.

3

Reclaiming disk space before an upgrade

Users scan an entire drive by content before migrating to a smaller SSD, removing exact duplicate files first.

4

Auditing shared or backup folders

IT-minded users scan shared drives or old backup folders to identify redundant copies accumulated over time.

Pros & Cons of dupeGuru

Pros

  • Completely free and open source
  • Cross-platform (Windows, Mac, Linux)
  • Dedicated modes for photos and music
  • Safety features like reference folders

Cons

  • Interface looks basic compared to paid tools
  • No cloud storage duplicate scanning
  • Fuzzy image matching can need manual tuning

Frequently Asked Questions

Is dupeGuru free to use?

Yes, dupeGuru is free and open source, with its source code available on GitHub.

Can dupeGuru find similar (not identical) images?

Yes, its Picture mode uses fuzzy matching to detect visually similar images even if they differ in size, format, or minor edits.

What platforms does dupeGuru support?

dupeGuru runs on Windows, macOS, and Linux, with source code available for building on other platforms.

Does dupeGuru delete files automatically?

No, it presents scan results for manual review, and users choose whether to delete, move, or copy the flagged duplicates.

Pricing Overview

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Free

Detailed plans are not listed. Visit the official website for pricing information.

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Best For

🧑‍💻Freelancers🏪Small Business Owners📷Photographers & Videographers

Related searches

dupeGuru alternativesFree dupeGuru alternativesOpen-source dupeGuru alternativesBest Duplicate Finders

About the Product

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Platforms
WindowsMacLinux
Target AudienceIndividuals and power users who need a free cross-platform duplicate file cleanup tool

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duplicate file finderfile deduplicationopen source utilitydisk cleanupphoto deduplication

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