Image Comparator is an easy tool to find and delete duplicate images. With its special algorithm it can find your duplicate images very quickly. With its pixel by pixel comparation approach it can find duplicate files even if their file sizes and formats are different. This software supports jpg, gif, png, tif, bmp and ico formats.

Image Comparator doesn't find look-alike images. It also doesn't say if an image and its different resolution variants are same images.

How to use:
1. Add Folders
Add folders you want to compare by either clicking the "Add Folder" button or dragging the folder to the console on the bottom of the program.

2. Options
"Skip Files With Different Size" Option:
When you convert an image from one format to another(jpg to bmp etc.) its file size change, therefore even if two files have different sizes, they can still be the same image. Normally Image Comparator takes this into consideration and compares every file, despite their size; but it may be redundant sometimes(when you are sure that there can't be such files). When you select "Skip Files With Different Size" option, Image Comparator first categorizes the files according to their sizes, then makes pixel by pixel comparation. This way, depending on your input files, Image Comparator may run up to hundreds of times faster.

"Auto-Delete Corrupt Files" Option:
When selected Image Comparator automatically deletes all corrupt image files found in the search.

Image Comparator has two different algorithms to compare pictures:
a. Fast Comparation (recommended)
Fast comparation mode compares only some random pixels on each picture. You can increase the pixel count for more precision but it may cause the computer to run out of memory. Default value 1000 is precise enough and doesn't use too much memory.
Important Note: decreasing the pixel count doesn't make the program run any faster, it only uses less memory.

b. Exact Comparation
Exact comparation mode compares all pixels of a picture for absolute results but it is way slower than the fast comparation method.

3. Find Duplicates
Now just start the program by clicking "Find Duplicates" button and wait for results. You can pause and continue your search any time.

4. Results
When the program finishes you will see all duplicate files side by side on the right and left consoles of the program (One pair on the right, other on the left). If there were any image files that cannot be opened(corrupt) you will see them as well. Now you can double click or press "Enter" on any picture to preview them with Windows Picture and Fax Viewer, or you can click ">>" button to expand the program and preview your files on program's picture viewer before starting to delete them.

You can select the files you want to delete from both consoles and delete them by clicking "Delete Selected" button. If you want to remove some pairs from the list without deleting them you can select them and click "Remove from List" button. You can also save your results to continue your work later by clicking "File\Save". You can load your results anytime by clicking "File\Open".

Please Note: this software includes 32-bit version and 64-bit version, use the 64-bit version only if you get an unexpected error while using 32-bit version. Both versions of the program supports multi-threading and 32-bit version runs considerably faster than the 64-bit version even if your system fully supports 64-bit.

Requirements:
* Microsoft .NET Framework

The license of this software is Free, you can free download and free use this image utility software.