If you want a dupeGuru alternative on Windows 11, the two serious options are Czkawka’s newer frontend, Krokiet (free, open source, Rust, with far more tools), and DupeDoctor (a paid Windows 11 app focused on safe, guided cleanup). DupeDoctor confirms exact duplicates with a full BLAKE3 hash, finds look-alike photos with perceptual hashing but never auto-selects them, sends deletions only to the Recycle Bin, refuses to touch protected system paths, and has no network capability at all. dupeGuru itself still works and is free, so if it does what you need, there is no reason to switch.
This page is a fair comparison based on each project’s own pages.
Find duplicates and look-alike photos, then recycle the extras safely.
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What does dupeGuru do?
From dupeguru.voltaicideas.net and its GitHub repository:
- Cross-platform GUI for Linux, macOS, and Windows, written in Python with Qt5 on Windows and Linux.
- Similar filenames as well as identical ones, plus content scans.
- Music mode that scans tags and shows music-specific information.
- Picture mode that scans pictures “fuzzily,” to find similar images.
- Reference directories and grouping that “prevent you from deleting files you didn’t mean to delete.”
- Move or copy duplicates, not only delete.
- GPL-3.0 licensed, about 7.9k stars on GitHub at the time of writing.
The latest release on its GitHub releases page is 4.3.1. Czkawka’s own comparison table lists dupeGuru as not in active development. It is still a useful tool, but expect fewer updates.
What do Czkawka and Krokiet do?
From the Czkawka repository:
- Czkawka is the “older gtk4 GUI frontend, superseded by Krokiet.” The README says “Version 12.0 is the last released version, no new binaries will be provided,” and encourages users to switch to Krokiet.
- Krokiet is the newer frontend, built with Slint, in active development.
- Written in Rust, multithreaded, with cache support for faster repeat scans, a CLI, and a portable version.
- Many tools: duplicates (by name, size, or hash), empty folders, big files, empty files, temporary files, similar images, similar videos, same music, invalid symlinks, broken files, bad extensions, an EXIF remover, a video optimizer, and more.
- “No spying”: the README says it “does not have access to the Internet, nor does it collect any user information or statistics.”
- Licenses: the Czkawka GTK GUI and CLI are MIT; Krokiet and the Android app Cedinia are GPL-3.0. About 34.3k stars on GitHub.
- Platforms: Linux, Windows, macOS, FreeBSD, and an Android app.
If you want the most tools for free, Krokiet is hard to beat.
What does DupeDoctor do?
DupeDoctor is a Windows 11 app built around reclaiming space without accidents. From its product page:
- Exact duplicates grouped by size, pruned with a fast partial hash, then “confirmed by a full BLAKE3 hash, never by name or size alone.”
- Copy-named files such as “file (1)” and “Copy of file,” grouped with the suffix-free original as the natural keeper.
- Look-alike photos found with perceptual hashing (different resolution, light crops, JPG vs PNG), with a similarity score and side-by-side compare. They are labeled “similar, not identical” and “never auto-selected.”
- Similar videos, duplicate songs, large and old files, installers, and empty folders in the same scan.
- Recycle Bin only, with a warning if your selection would leave a set with no copies.
- Protected-system-path guard that “refuses to recycle, move, or hardlink operating-system files.”
- Move or hardlink options, watched folders, and CSV or JSON export.
- No network: “no HTTP client and no network capability in the build at all.”
How do the three compare?
| dupeGuru | Krokiet (Czkawka) | DupeDoctor | |
|---|---|---|---|
| Price | Free, GPL-3.0 | Free, GPL-3.0 (Czkawka GTK and CLI MIT) | One-time Store purchase |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux, FreeBSD, Android app | Windows 11 |
| Active development | Not per Czkawka’s table | Yes | Yes |
| Exact match method | Content scan | Name, size, or hash | Size, partial hash, full BLAKE3 |
| Similar images | Picture mode | Yes | Perceptual hash, never auto-selected |
| Similar videos | Not listed on its site | Yes | Yes |
| Music | Music mode (tags) | By tags or content | Duplicate songs |
| Empty folders, big files | Not listed on its site | Yes | Yes |
| Extra tools (broken files, bad extensions, EXIF) | Not listed on its site | Yes | No |
| Protect originals | Reference directories | Your selection | Keep one per set warning, system path guard |
| Deletion options | Delete, move, or copy | See its documentation | Recycle Bin, move, or hardlink |
| Network access | Not stated | None, per README | None in the build |
“Not listed on its site” means we did not find the feature on dupeGuru’s own pages, not that it is impossible. Check each project’s documentation for the feature that matters most to you, and test any tool on a copy of a small folder before you point it at years of photos. | CLI | Not listed on its site | Yes | No |
Exact duplicates verified by BLAKE3, similar photos never auto-selected.
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When should I pick Krokiet or dupeGuru?
Pick a free, open source tool when:
- You use more than one operating system and want the same tool everywhere.
- You want extra tools like broken file detection, bad extensions, or a video optimizer (Krokiet).
- You want a CLI for scripts (Czkawka CLI).
- You are comfortable reviewing selections carefully before deleting.
- dupeGuru already works for you, especially its reference directories.
When is DupeDoctor the better fit?
Pick DupeDoctor when:
- You are cleaning a family PC or someone else’s files and want guard rails: Recycle Bin only, keep-one-per-set warnings, and a system path guard.
- Photos matter most. Similar photos are shown side by side with dimensions and size, and you choose deliberately, so you keep the higher-resolution original.
- Copies named “(1)” and “Copy of” are your main clutter.
- You want to keep files but save space, using hardlinks instead of deleting.
- You want a no-network app you can verify by watching a network monitor.
How do I clean duplicates safely with DupeDoctor?
- Choose folders to scan, for example Pictures, Downloads, and Documents.
- Review exact duplicates first. Use a keep strategy to pre-select extras, then check.
- Review similar photos separately. Compare side by side and select manually.
- Read the warning if a selection would remove every copy in a set.
- Recycle, move, or hardlink the extras.
- Check the Recycle Bin before emptying it, a few days later.
- Add watched folders if Downloads fills up again.
For more, see our guides to deleting duplicate files safely and finding duplicate photos on Windows.
Frequently asked questions
Is dupeGuru still safe to use?
It is open source and still works for many people. Its development has slowed, so test it on a small folder first and keep backups.
What replaced Czkawka?
The Czkawka README says its GTK frontend is superseded by Krokiet, from the same project.
Can DupeDoctor undo a deletion?
Deletions go to the Recycle Bin, and the app has a button to open it. DupeDoctor’s own page notes that Windows offers no reliable programmatic un-recycle, so restore from the Recycle Bin.
Does DupeDoctor run on Windows 10?
DupeDoctor is built for Windows 11.
Try DupeDoctor
Get DupeDoctor from the Microsoft Store and read the DupeDoctor product page.
Reclaim space without the fear of deleting the wrong copy.
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Microsoft and Windows are trademarks of the Microsoft group of companies. dupeGuru, Czkawka, and Krokiet are the work of their respective developers. Other product names are trademarks of their owners. DupeDoctor is not affiliated with or endorsed by any of them.
Last updated 17 October 2026. Published by Automata Labs, a software company in Canada.