Whether you are a professional photographer or just someone who shoots a lot with a phone, if you have the habit of storing your photos on Mac, then chances are high that there are similar photos on your Mac. Sometimes, you may want to find similar photos on Mac and delete some of them. For example, some visually alike photos taken in burst mode are not good enough and can be eliminated.
The secret is to use Cisdem Duplicate Finder for Mac, a powerful and easy-to-use app to find similar images and duplicate files (including duplicate photos, videos, audios, archives, documents and more).
Supporting all common image formats (JPEG, TIFF, PNG, BMP, GIF, WebP, SVG, etc.) and some raw image formats (Canon CR2, Nikon NEF, etc.), this app quickly identifies similar photos and group them together for you to deal with.
What are similar photos? There is no definite definition of that. As a similar image finder, Cisdem Duplicate Finder finds the following items.
You can read through the steps and tips first before trying this method.
1. Download and install the similar image finder for Mac. Open it.
2. To find similar photos in a folder or Photos library, click the plus icon to add the folder or library. To detect similar images across multiple locations, add them all.
3. (Optional) Click the settings icon . Set the Image Similarity level based on your need, say, 70% (default), 50% or lower. You can start with the loosest setting - 0%.
4. Click Scan.
5. When the scan is done, go to the Images tab and choose Similar sub-tab. If not happy with the results showing up there, click < Back. Click New Scan. Set Image Similarity to a different level and scan again.
6. Go to Similar sub-tab. The detected similar pictures are displayed in groups. In each group, select the unwanted similar photos for deletion. The best shots are not selected and will be kept.
7. (Optional) If needed, you can use the provided selection rules to help auto select photos for you.
8. Click Delete.
9. Click Yes.
Note that it will delete both the similar images selected in Step 6 and the auto-selected duplicate files (including duplicate photos).
Tip 1: In Step 6, the preview may help you decide which photos to keep and which to remove. There are 3 preview modes, the third one providing photo information like file size and resolution.
Tip 2: If you want to handle only the similar photos on your Mac at the moment and leave duplicates (including duplicate photos) untouched, this tip is for you. Before you take Step 6, highlight all items under the All tab with Command-A, click the list icon and choose Deselect. This will deselect the auto selection applied.
As the name suggests, this app is designed especially for the purpose of finding similar images. Similar Image Detector can find similar images on Mac’s internal storage as well as external storage devices. It also supports Apple Photos and iPhoto. There are two scan modes: Group similar pictures and Search for pictures similar to the chosen one. The former will look for all similar photos in folder.
Compatible with 25 image formats, this similar photo cleaner can scan for similar photos and duplicate photos on Mac. It uses the following algorithms to look for similar pictures on Mac.
You can set it to only find duplicate photos by going to Advanced Settings > Comparing Algorithm > Duplicate Only.
In the View in Groups mode, you can select the unwanted version(s) of each group of similar photos and move it or them to Trash or a certain folder. The One to One mode is more useful for image comparing. It provides file attributes and shows the matching level between the selected pair of images. However, to select and remove photos, you need to switch back to View in Groups. This app excels at searching for similar looking images on Mac. Hopefully the future versions will bring improved user experience.
PhotoSweeper is an easy-to-use, fast and powerful duplicate photo cleaner for Mac. This app supplies six different options for you to compare your photos and find images that look similar, depending on how closely you want to look at them. You can compare by Bitmap, Histogram, Time Interval, Time and Bitmap (which is the default search setting) or Time and Histogram. Follow below guidance to find similar images on Mac.
Above are the best tools for Mac to find similar photos and images. I hope the comparison will help you pick the tool that best suits your need.
|Cisdem Duplicate Finder||Similar Image Detector||PhotoSweeper|
|OS||macOS 10.10 and later||macOS 10.7 and later||macOS 10.10 and later|
|Find similar photos||Yes||Yes||Yes|
|Find duplicate photos||Yes||Yes||Yes|
|Supported file types||Images, audios, videos, documents, spreadsheets, archives and more||Images||Images|
Good at finding similar pictures and duplicate files on Mac
Multiple options for scanning, preview and removal
Very useful selection options such as Select Lowest Resolution
Auto-Select & One-Click Deletion
Good at finding similar images
Multiple scanning and removal options
Easy to preview and compare with One to One view mode
Low in price
Good at detecting similar photos
Multiple scanning methods
3 preview modes
Useful Auto-Select feature
|Cons||No support versions prior to OS X 10.10||Can't scan multiple folders||Not intuitive enough for new users|
You can also search for similar images on Mac by hand. However, if you have a very large photo collection, it can be a waste of time and energy.
Here’s another scenario where you search for similar photos. You want to find online images similar to a photo of yours. There are a few easy way to do this. I will share one of them.
1. Open Google Chrome for Mac (or a different browser), go to Google Images.
2. Drag your photo into the search box.
3. You will be presented with search results. Click the Visually similar images link, and you will find images that are similar to the one you upload.
In addition to Google Images, there are other great tools to help Mac users find similar images by upload.
Some Mac users are also Windows users. If you are one of them, here’s a bonus tip for you.
Coming with a simple and neat interface, VisiPics is able to find similar images on computer. It supports 8 image formats including JPEG, GIF, PNG, BMP, etc. Users are able to adjust the similarity level and preview duplicates and similar image files easily. In addition to providing an auto-select mode, this similar image finder also allows users to manually select the image files to delete.
In most cases, you don’t need multiple really similar photos or various versions of the same photo. Similar and duplicated photos can take up space on Mac often without you even noticing it. By using software to find similar photos on Mac, you can easily free up space and better organize your photo collection. If there are also other types of duplicate files on your macOS device such as iMac or MacBook Pro, the recommended software can effectively find and delete them all at once. This way, you can make room for new files.
Peter has always had great enthusiasm for writing, programming and web development. He likes writing about software and technology, his works are featured on some tech blogs or forums like Tom's Hardware, CNET, etc.
Many similar photos scattered on MY Mac, and they took up much hard drive space. When I felt depressed, my friend recommended me Similar Image Detector, and now all similar photos are gone.
Finding and deleting similar images manually is really very annoying and tedious, thanks for sharing such powerful similar image finders