AllDup vs DoubleKiller
AllDup
alldup.deDoubleKiller
bigbangenterprises.deSide by side
| Figure | AllDup | DoubleKiller |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Windows | Yes | Yes |
| Plans published | 1 | 6 |
| Spec score · Duplicate File Finders | 8.0 (#9) | 8.8 (#2) |
| Download version | The download page lists version 4.5.72, dated 17.12.2025, with installation and portable downloads. | The maker's download page lists DoubleKiller 1.6.2.82 dated 2007-07-07 with a 392 kB archive. |
| Founded | 1999 | 2000 |
| Purpose | AllDup searches for and removes duplicate files by content, file properties, similar images, and music tracks. | DoubleKiller finds and removes duplicate files. |
| Support | AllDup support materials include online documentation, a support forum, and a technical support request form. | The maker provides email support for help requests, bugs, feature suggestions and criticism. |
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
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.