Anti-Twin vs Duplicate Photos Fixer Pro

Anti-Twin searches hard disks and other storage locations for duplicate or similar files. It can compare names, check file contents byte by byte, search for binary similarity, and compare images by their pixels. The image method can find similar pictures even when they have different compression rates or file formats. Search locations include local drives, USB flash disks, memory cards, shared network folders, and a second folder or path. Results can be selected automatically, exported as an Excel file, and sent to the Recycle Bin or deleted.

The program is free for private use and dates to 2003. The download page lists 32-bit and 64-bit Windows, and says it can run through Wine on Linux or Mac and on ReactOS. It can also be installed and started from a USB memory stick. Anti-Twin does not search the Internet or FTP servers, excludes files larger than 2 GB from comparisons, and has no restore function for deleted files. The site says it was maintained until 2012 and still runs on Windows 10 and 11.

Duplicate Photos Fixer Pro finds exact duplicates and similar-looking images, helping users organize photo libraries and recover storage. It can automatically mark photos for deletion, then group detected images so they can be previewed before removal. The product page lists support for JPG, PNG, TIFF, GIF, RAW, PSD and HEIC/HEIF files. On Windows, scans can include a PC, Dropbox without downloading its photos, and Lightroom Classic or Picasa libraries. Windows deletions go to the Recycle Bin, but duplicates on external drives are deleted directly. The maker lists Windows, macOS, iOS and Android versions; its Windows edition supports Windows 7 and later, in 32-bit and 64-bit versions. The Windows trial is available once per user and permits removal of up to 15 duplicate photos. The Windows license costs $39.95 a year, billed annually, for one year. A 60-day money-back guarantee is offered to customers who contact the company within 60 days of registration.