You can use Image Dupeless to detect image files in your computer. Once duplicate image files are found, you can choose to delete unnecessary files from your computer.

1. After downloading the software and unzipping it, you do not need to install it. Just double-click the software icon to open it. As shown below

2. After opening the software interface, find the [Create Gallery] icon as shown below to create a new gallery.

3. Select an image folder (the folder should preferably be named in English).

4. After setting it up, click the "Start" button to create a new one.

5. Click the [Find Duplicates] icon.

6. Use the [Compare] function to compare whether each image is similar, or you can manually set the comparison level.

7. Click the [Eye] icon to view the same images.

8. Compare whether the images are the same. If they are the same, delete one.