Picking the keeper is the step the older freeware leaves to you. It lists matches as pairs, so a photo saved four times turns into several pairs, and each pair needs its own click. Our app starts from the group instead.

Exact copies are found by file size and a SHA-256 checksum, which catches the same JPG saved under two names in two folders. Similar photos go through a perceptual hash of a 256-pixel preview. Each picture is hashed in all 8 orientations, four rotations plus their mirror images, so a phone shot that one app rotated and another flipped still lands next to the original. After grouping you can narrow a group by shooting time or GPS position, which helps split a burst of near-identical frames from a true copy.

Formats cover the common ones (JPG, PNG, BMP, GIF, TIFF, WebP) plus camera RAW files and HEIC photos from iPhones, which Windows reads through the HEIF Image Extensions codec, plus HEVC Video Extensions for most iPhone photos. Two more scan modes add videos or any file type and match them as exact copies. A separate blurry-photo mode flags out-of-focus frames you probably never meant to keep. The interface ships in 20 languages.

Nothing is wiped on the spot. Removed files go to the Recycle Bin, so a wrong pick takes one restore to undo.

Seven tools side by side: matching, bulk delete, price

Prices and editions change, so check each vendor page before you buy. The rows below follow release notes and project documentation as of November 2026.

Add several folders or whole drives to one scan, including network shares and USB sticks. The developer promises "no limitation for number of files". MajorGeeks describes matching that can compare resized pictures "or even pictures with corrected colors", so a black-and-white edit should still pair with its color source.

The changelog adds TIFF support and the "only identical" switch in version 1.1 (October 19, 2012). A minimum picture size option followed in 1.1.1 (September 4, 2019), then Canon CR2 support plus list export in 1.2 (April 9, 2021). MajorGeeks offers an installer and an Awesome Duplicate Photo Finder portable download. The portable one skips setup. Malavida lists seven more interface languages, from Spanish and German to Russian and Japanese.

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The format list is the gap readers notice first. A commenter under one long review said deleting duplicates one at a time was fine and asked mainly for more RAW formats. Nikon and Sony RAW files fall outside the scan, as do HEIC photos from a recent iPhone.

Verdict: This freeware suits a one-off check of a few hundred JPGs. Larger libraries expose its manual delete step and short format list.

Does it find similar photos or only exact copies?

Similar-image tools usually reduce each picture to a short fingerprint, a perceptual hash, and compare fingerprints instead of bytes. That is how a resized copy can match its original. Many free tools skip this and compare checksums, which finds only byte-for-byte copies, a limit people keep running into in Windows 11 help threads.

The vendor promises matches on pictures that were scaled or had their colors adjusted. One photo-organizer review ran the app on a test library, found several real duplicates below 90% similarity, and concluded that the results need a manual check. A second review points out that you cannot change how similar two photos must be to count as a match. The app's own description, quoted on a SketchUcation forum thread about it, warns that some flagged pictures will not be duplicates, such as two shots taken in quick succession.

Treat anything under 100% as a candidate and look before you delete. Burst shots and HDR brackets can score high while being different pictures you want to keep. A first scan of a library with tens of thousands of files can take a while, since every picture has to be read and fingerprinted.

Can it delete duplicates in bulk or choose which copy to keep?

One detailed review lists the missing mass delete as the main drawback, since every set of duplicates has to be handled individually. Deleted files go to the Recycle Bin, or you can move them to a folder of your choice, which is the safer habit with an unfamiliar tool. The list export from version 1.2 lets you study matches in a spreadsheet, while cleanup still happens pair by pair.

Our app marks the best copy in each group. VisiPics and Duplicate Cleaner have their own auto-select modes, covered in their cards below.

Downloadcrew's 2013 review of version 1.1 warned that setup would by default install "rather less awesome toolbars" and told readers to pay attention during installation. That note covers a build from more than a decade ago, and it is the only dated third-party warning in our sources.

Current verdicts come from two reviews published by companies that sell competing duplicate finders, and they contradict each other. One calls the installer clean. The other says a popular anti-malware scanner flags the app as adware. Neither source is neutral and we did not run our own scan, so for "is Awesome Duplicate Photo Finder safe?" we repeat neither claim as fact.
Get the installer from the developer's site (duplicate-finder.com) or from MajorGeeks. Read each setup screen before you click Next. Right-click the installer and scan it with Microsoft Defender before opening it. For a quick check of one folder, the Awesome Duplicate Photo Finder portable build skips the installer question.

Awesome Duplicate Photo Finder Windows 10 and 11: is it still updated?

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After version 1.1 in 2012, the next feature build came in 2019, then 1.2 with CR2 support in April 2021, then the cosmetic 1.2.1. The VisiPics site says its last version came out in 2013. Malavida still lists version 1.2 while MajorGeeks shows 1.2.1.
None of our sources reported a compatibility problem on Windows 10 or 11, but we have not tested 1.2.1 on Windows 11 ourself. The slow pace matters most for formats, because newer cameras and phones save files that the 2021 format list never covered.

How we built this review and judged the alternatives

We started from the Awesome Duplicate Photo Finder alternatives people list on AlternativeTo and in Windows help threads, then kept tools that run on Windows 10 or 11 and handle photos specifically. Each one was checked against five criteria, in order of weight.

• Lets you undo a deletion through the Recycle Bin, a move folder or a protected reference folder
• Marks the copy to keep by resolution, sharpness or rules you set
• Matches resized, rotated or edited copies beyond byte-for-byte checks
• Reads RAW, HEIC and WebP alongside JPG
• Gets regular releases and states its price up front

The first card is our own product, so it describes how the app works from its code and documentation. For the other six we did not run timed benchmarks. Their cards rest on each project's documentation and release notes, with independent reviews and user reports in public threads as a cross-check. Where a fact comes from a competing vendor's review, the card says so.

1. Duplicate Photo Finder: best for large libraries where the app picks the keeper

Older freeware leaves you with thousands of pairs and no way to act on them together. Our app puts every copy of a picture in one group and marks the best frame, so you confirm a group instead of a pair.

Our take: We make this one, so weigh that. The auto-marked keeper is why it sits first.
Verdict: Choose our app if your library runs into the thousands and you want the app to suggest which copy stays.

2. Czkawka / Krokiet: best free open-source cleaner

Czkawka is the open-source tool people often move to from older finders, and one Hacker News commenter switched from dupeGuru for its comparison view and speed. The project now ships a newer interface called Krokiet. The Czkawka README says version 12.0 is the last release of the old app and points new users to Krokiet. Its Similar Images tool finds pictures that differ in resolution or carry watermarks, and Similar Videos does the same for clips, a job our duplicate video finder guide covers in more depth. The README also states that the app has no internet access and collects no statistics.

Our take: The best free pick here for anyone comfortable judging each group by eye.
Verdict: Choose Czkawka or Krokiet if price decides it and you are happy to choose keepers yourself.

3. dupeGuru: best for protecting a master photo folder

dupeGuru uses a reference folder. Mark your master archive as reference, and dupeGuru matches other folders against it without selecting files inside it for deletion. Its project site describes a Picture mode that "can scan pictures fuzzily" to find similar shots, and you can delete, move or copy whatever it finds. The project is community-run. Its repository asks for volunteers for macOS and Linux upkeep, and issue tracker holds recent crash reports on Windows, including a WinError 64 crash filed in August 2026.

Our take: The reference folder keeps edited exports safe while you clear out old camera dumps.
Verdict: Choose dupeGuru if you already keep a curated master folder and want everything else checked against it.

4. Duplicate Cleaner: best for assisted selection

Duplicate Cleaner from Digital Volcano comes in a free edition and a paid Pro. The vendor lists similar-image matching for resized, rotated and edited photos, camera RAW support. Its Selection Assistant helps pick which files to remove. In a Windows 11 help thread, one user called the free edition more polished than older freeware. In 2015 PCWorld found that the free version treated photos as plain files, with image matching reserved for Pro. Check the vendor's current comparison before you count on the free edition for similar photos.

Our take: The Selection Assistant is the draw. The free-versus-Pro split needs checking.
Verdict: Choose Duplicate Cleaner if you want to write your own selection rules and are open to paying for Pro.

5. AntiDupl.NET: best for unusual image formats

AntiDupl.NET is a free, MIT-licensed project on GitHub that compares pictures by content and also flags damaged images. Its README lists 18 formats, reaching WebP and HEIC as well as newer AVIF and JXL files. Photoshop PSD is on it too. Reviews show the trade-off. Downloadcrew found the interface "isn't quite as intuitive as it should be" and warned that its similarity algorithms are not entirely reliable, so every result deserves a look before deletion.

Our take: JXL and AVIF on the README list make AntiDupl.NET useful when other finders pass those formats over.
Verdict: Choose AntiDupl.NET if your folders hold AVIF, JXL or PSD files that other finders pass over.

6. VisiPics: best for a simple photo-only freeware

VisiPics still gets recommended in Windows help threads for its plain, old-school look and zero price. The VisiPics site describes software built only for finding duplicate pictures and says the latest version was released in 2013. Its Auto Select mode keeps the higher-resolution file or the smaller one, depending on your setting, and results appear while the scan runs. A review by a competing vendor found the scan slow and warned that Auto Select misfires on folders with many similar shots.

Our take: VisiPics is free and simple, but it is also the oldest code here, by more than a decade.
Verdict: Choose VisiPics if you want a free photo-only tool and can live with software last updated in 2013.

Which alternative fits your photo library?

In a Windows 11 help thread about duplicate finders, one user described losing a batch of family photos because the software decided they were duplicates. Similar-photo modes produce false matches by design, as the AntiDupl.NET review and the warning about burst shots both show.

• Back up the library to an external drive before the first scan
• Run an exact-match scan first, since byte-identical copies are safe to remove
• Open similar groups at full size, because burst shots and edits score high
• Leave deletions in the Recycle Bin for a week before emptying it
• Protect a master folder from selection when the tool allows it

If the Recycle Bin is already empty, stop writing to that drive and try photo recovery software before the free space gets reused.

Also considered: tools we left out and why

• The classic Czkawka app, left out because version 12.0 is its last release and the project sends new users to Krokiet, which we ranked instead
• Anti-Twin, last updated in 2010 according to a competing vendor's review, so older still than VisiPics
• SearchMyFiles, a general NirSoft file search tool whose duplicate mode matches identical files only
• PhotoSweeper, built for macOS with no Windows version

Sources

• Malavida: Awesome Duplicate Photo Finder catalog entry with version 1.2 and interface languages