DoubleKiller review
A mature, low-cost Windows duplicate finder with broad scanning and Pro automation.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
DoubleKiller is a standalone Windows utility for finding and removing duplicate files. It scans selected directories, complete drives, or computers in Network Neighborhood, then compares files using combinations of name, size, modification date, and content. Results can be reviewed manually or selected automatically before files are deleted or moved. It is aimed at Windows users who want a focused duplicate-file tool, including private users who prefer a free option.
The free DoubleKiller plan covers private use and includes duplicate scanning, file comparison, and deletion or moving of selected files. DoubleKiller Pro for private use costs $19.95 one time and adds advanced comparison options, automatic selection by criteria, Recycle Bin support, and command-line support. The commercial-use Pro licence costs $39.95 one time and includes advanced comparison, automatic selection, and Recycle Bin support. Prices are listed per licence and may vary by licence quantity; the Pro plans also include a 21-day refund policy.
Its strongest fit is broad Windows scanning with practical review and cleanup controls. Filters can narrow results by masks, type, attributes, or size, while exports provide result lists for record-keeping. Pro expands matching with CRC32 fingerprints and byte-per-byte comparison, and supports ZIP archives and catalog files. However, the product is Windows-only, development has been paused since 2015, and the listed release is from 2007. Users seeking a current cross-platform tool or actively developed software should choose an alternative; Windows users who value low upfront cost, network scanning, and optional automation should consider DoubleKiller.
DoubleKiller pros and cons
- Where it wins
- Scans drives, directories, and computers on a network
- Compares names, sizes, dates, and file content
- Pro adds automatic selection and command-line automation
- Where it doesn't
- Windows-only platform coverage
- Development has been paused since 2015
- Recycle Bin support is limited to Pro
DoubleKiller fact sheet, pricing and score →
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