Anti-Twin vs DoubleKiller
Anti-Twin
antitwin.orgDoubleKiller
bigbangenterprises.deSide by side
| Figure | Anti-Twin | DoubleKiller |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | — |
| Plans published | 1 | 6 |
| Spec score · Duplicate File Finders | 8.1 (#6) | 8.8 (#2) |
| Export | Search results can be exported as an Excel file even if Excel is not installed, and the site says OpenOffice users can use the export. | The results list can be exported to a text file. |
| Founded | 2003 | 2000 |
| Portable use | The program can be installed on a USB memory stick and started from there. | DoubleKiller is a standalone executable that needs no installation; extract it and run it. |
| Purpose | Anti-Twin searches a hard disk for duplicate or similar files and can send found files to the recycle bin or delete them. | DoubleKiller finds and removes duplicate files. |
Plans
DoubleKiller
- DoubleKiller FreeFree
- DoubleKiller (free, private use)Free
- DoubleKiller Pro Personal$19.95, paid once
- DoubleKiller Pro Commercial$39.95, paid once
- DoubleKiller Pro (commercial use)Price not published
- DoubleKiller Pro (private use)Price not published
In their own words
Anti-Twin
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.
DoubleKiller
DoubleKiller is a Windows utility that finds duplicate files in directories, on complete drives or on computers in Network Neighborhood. It can compare files using any combination of name, size, modification date and content. Scans can exclude files by name, type, attributes or size, and the results list lets users choose files to delete or move to another directory. Results can also be exported to a text file. The program is a standalone executable that can be extracted and run without installation; its maker says it does not change the system without prior permission. The free version is for private use and allows unlimited folder and file counts, but individual files are limited to 2 GB and commercial use is not permitted. DoubleKiller Pro adds a multilingual interface, advanced comparison options, saved and reloadable result lists, and command-line automation. The download page lists version 1.6.2.82 dated 2007-07-07, and the maker says development is paused. The listed paid starting price is $19.95 one-time.