DoubleKiller vs Duplicate File Detective
| DoubleKiller | Duplicate File Detective | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Windows | Windows |
| Free plan | Yes | No |
| Paid from | 19.95 one-time | 30 one-time |
| Platform coverage | windows | windows |
| Scan locations | Directories, complete drives, network computers; Pro also supports ZIP archives and catalog files | local drives; network shares; NAS devices; removable storage; file server shares |
| Match methods | File name, file size, modification date, content, CRC32 fingerprint, and byte-per-byte comparison in Pro | file name; extension; file size; CRC32; MD5; SHA-1; SHA-256; SHA-512; byte-for-byte content; visual image comparison; document properties; audio tags |
| Automatic selection | Yes | Yes |
| Recycle Bin / Trash | No | Yes |
| Folder exclusions | No | Yes |
| File preview | — | Yes |
Both are listed in Best Duplicate File Finders. On Samsung Mobile US Press, Duplicate File Detective scores higher on our published basis.