Duplicate files are the easiest storage to get back. A photo library copied to a second drive, a folder restored from a backup, the same video downloaded twice, an archive saved once to Downloads and once to Documents - none of it is doing anything, and all of it is taking space. Duplicate Finder finds those copies and removes them safely. WHY IT FINDS WHAT OTHER TOOLS MISS Duplicate Finder does not compare file names. It compares the files themselves. Every candidate goes through three stages: files are first grouped by size, then a small section of each file is read and checksummed, and only the survivors are read in full and checksummed again. Two files are reported as duplicates only when they are identical byte for byte. That means a file keeps being found after you rename it, move it, or copy it into another folder. "IMG_2381.jpg", "IMG_2381 - Copy.jpg" and "vacation-final-edit.jpg" are one and the same file, and Duplicate Finder groups them together. WHAT YOU CAN SCAN Photos, videos, music, documents and archives, each with one click. If you need something else - project files, fonts, ISOs, save games - type the extensions yourself and scan those instead. Select as many folders as you like, on any drive, including external and network drives. DESIGNED TO BE SAFE Nothing is removed without you saying so. In every group the oldest copy is kept as the original and marked, and the rest are pre-selected for removal - but you decide, file by file. Thumbnail previews and the full path of every copy are shown, so you can see exactly what you are removing before you remove it. Everything deleted goes to the Windows Recycle Bin, not into thin air. If you change your mind, it is one restore away. SEE WHAT YOU GOT BACK The Analytics screen records every completed run: total space freed, how many files were removed, and a breakdown by file type over time. It is a record of what the app has actually done for you, not an estimate. BUILT FOR REAL DRIVES The scan adapts itself to the hardware it is running on. It measures whether each drive is a hard disk, an SSD, a removable disk or a network share, and reads each one at the concurrency that suits it - because the setting that makes an SSD fast makes a hard disk slow. Files are read in path order so the drive works with the layout it already has, and small files are never read twice. PRIVACY Duplicate Finder collects nothing. No analytics, no telemetry, no crash reporting service, no advertising, no accounts. The app makes no network connections of its own, and your files and folder names never leave your computer. The only thing stored is your own settings and a local history of what you have deleted - and that history records categories and totals, never file names or paths. ELEVEN LANGUAGES English, German, Spanish, French, Italian, Japanese, Korean, Portuguese (Brazil), Russian, Turkish and Simplified Chinese. Buy once. No subscription.