dupeGuru

dupeGuru is a free desktop tool for locating duplicate files on Windows, macOS, and Linux. Its Standard, Music, and Picture modes provide different scan settings. Filename scans can find similar names, while Music mode compares filenames or selected music tags. Picture mode looks for similar images, and can compare different dimensions when that preference is enabled. Contents scans identify exact matches, using file size to rule out impossible matches before comparing contents; recursive scans can also find duplicate folders. After a scan, users can filter and sort results, compare a file with its reference in a details panel, and delete, move, or copy marked items. Reference folders and duplicate groups are designed to protect reference files and retain at least one item in a group. The documentation recommends checking results before deletion, since similar-word matching can produce false positives. Picture matching compares every image against every other image, which can make scans slow and CPU-intensive. The project is GPL-3.0 licensed.

dupeGuru provides several matching approaches and review tools before file actions. Picture scans can become resource-intensive, so users with large image collections should account for that limitation.

dupeGuru suits people who want to find and review duplicate files across folders on a Windows, macOS, or Linux computer. Its separate music and picture scans are useful for collections where names or contents alone may not identify similar items.

dupeGuru is a free desktop utility for locating duplicate files in folders on Windows, macOS, and Linux. It suits people who want exact-content checks alongside filename, music, and picture matching without a subscription. Its broad scan choices are useful, but similarity results demand human judgment before anything is removed.

Overview

Scans are organized into Standard, Music, and Picture modes, each with its own preferences and scan types. Results can be filtered and sorted, previewed in a details panel beside a reference file, and acted on by deleting, moving, or copying marked items. Automatic selection speeds up triage, while reference-folder and duplicate-group safeguards are designed to protect the reference and leave at least one file in each group.

Those protections lower the chance of an irreversible mistake, not the need for review. The help specifically recommends checking matches before deletion, particularly when similarity options are enabled. dupeGuru is GPL-3.0 licensed; bug reports and feature requests go through GitHub issues. Its official pages describe local computer scanning and deletion controls, without stating a privacy policy or compliance certification.

Key features

• Standard matching: Filename scans can use fuzzy matching to catch names that are alike rather than identical. Content scans are stricter: file size excludes impossible matches, then MD5 hashes compare contents, so identical-content cleanup is the more dependable choice when false positives are unacceptable.
• Music mode: Searches can use filenames or music tags, and preferences let you choose which tags to compare. Music-specific information appears in duplicate results, making it easier to distinguish recordings that share a title from files that are genuinely interchangeable.
• Picture mode: Picture-block comparisons find visually similar images, including different dimensions when that preference is enabled. This reaches beyond byte-for-byte duplicates, but every image is compared with every other image. The resulting quadratic workload can make large libraries CPU-intensive and slow.
• Folder and file review: A recursive contents scan can identify duplicate folders when their contained files have matching contents. Filtering, sorting, file preview, and a side-by-side details view help investigate questionable matches before an action.
• Cleanup controls: Marked duplicates can be deleted, moved, or copied. Trash or Recycle Bin handling, folder exclusions, and automatic selection support a controlled cleanup rather than an all-at-once purge.
• Similarity caveat: Similar-word matching can produce false positives and significantly slow scans. Treat fuzzy filename, tag, and image matches as candidates for inspection, not automatic deletion decisions.

Pricing

dupeGuru is free: the dupeGuru plan costs nothing and includes duplicate-file finding on Windows, macOS, and Linux. There is no trial because the product itself is the free plan, and no paid tier or seat quota is stated. That makes it a straightforward fit for individuals and teams that can manage their own review process and do not need a commercial support package.

Platforms

The application runs on Linux, macOS, and Windows. Release packages include Windows installer and portable builds, plus macOS, Debian, RPM, Arch Linux, and Ubuntu PPA options. Its cross-platform coverage is a practical advantage for households or teams working across operating systems.

Who it's for

Choose dupeGuru if you need one desktop tool for exact duplicate files, near-matching names, tagged music, and similar pictures, and you are prepared to inspect results. It is especially well suited to users cleaning mixed folders or duplicate directory trees without paying for software. Look elsewhere if you want image matching that stays fast on a very large library, a stated privacy certification, or vendor-backed support beyond GitHub issue reporting.

Pros and cons

• Pros: Free across three desktop platforms; combines exact-content and fuzzy matching; music tags and picture similarity address media libraries; recursive scans can find duplicate folders; move, copy, delete, exclusions, preview, sorting, and filtering provide multiple review paths; reference and group safeguards reduce accidental over-deletion.
• Cons: Similarity scans can return false positives; similar-word matching can slow scans considerably; picture comparisons scale quadratically and may become CPU-intensive; deletion still requires careful checking; no privacy policy, compliance certification, or support channel beyond GitHub issues is stated.

Alternatives

Duplicate File Finders is the broader category guide for comparing cleanup tools. Czkawka is another free, no-ads option if Android support matters alongside Linux, macOS, and Windows. Duplicate Files Fixer fits readers who want Android coverage and a paid annual tier; its free version scans unlimited files but removes up to 15 duplicates at once, then one at a time, while the full plan costs €35.95 a year.

Duplicate Photos Fixer Pro is the alternative to consider when a paid, trial-based photo cleaner across Android, iOS, macOS, and Windows suits you; its Windows plan is $39.95 a year, billed annually. Folder Size is better for Windows users focused on disk-usage analysis and charts, with a free tier and a $24.95 one-time Personal license. AllDup is a Windows-only freeware choice for private users and companies.

Auslogics Driver Updater serves driver updating rather than duplicate cleanup. CloneSpy is a free Windows duplicate-file tool, while DoubleKiller offers a free private-use Windows edition limited to 2 GB per file, with commercial use excluded.

Verdict

dupeGuru is the right recommendation for anyone wanting a no-cost, cross-platform duplicate finder with both exact matching and media-aware similarity modes. Pick it for control over how matches are reviewed and handled. Look elsewhere if your priority is consistently fast large-scale picture scanning or a documented privacy and support program.