Choose the scope
Scan one folder, several folders, or an explicitly selected broad local scope.
NestKeeper · Windows · v1.0.4
NestKeeper finds byte-for-byte duplicates across local folders and drives. It never decides which file matters. You do.
Founding price: £9 GBP once. Secure checkout through Lemon Squeezy. Includes the installer, portable app and user guides. Any applicable tax is shown at checkout.

Files stay hereOn your computer.
See it in action
Eight sample files. Three exact-duplicate groups. Review which copies are marked before cleanup. No files are deleted in this demonstration; scan waiting time is condensed.
One real acceptance run
The run identified 236.44 GB of possible waste. That is a scan estimate—not a verified free-space claim—until the remaining drive check is closed.
52,117files in one acceptance run
916exact-duplicate groups
994marked extras removed
0inspection errors in that run
The complete workflow
Scan one folder, several folders, or an explicitly selected broad local scope.
SHA256 confirms byte-for-byte matches. NestKeeper protects one suggested keeper per group.
Unmark anything important, then use Recycle Bin, a same-drive review folder, or Advanced permanent deletion.
Reopen dated Cleanup Sessions and export redacted records with SHA256 checksums.
Current build · real interface




Founding edition
Built for people managing years of downloads, photos, project folders, backups, and external drives on Windows.
Founding checkout available
Planned regular price: £15. A future 2.x release, organisational deployment, and data-recovery services are not included.
Before you buy
Exact duplicatesFinds files with identical contents, not visually similar photos. Review the results before choosing a cleanup action.
Windows installationThe current builds are unsigned and may trigger Windows SmartScreen. Installer and portable versions are included.
Checkout and supportLemon Squeezy handles checkout and delivery. Contact kreadivworx@proton.me for product support.
Before you trust it
No. The packaged app has no account, telemetry, advertising, cloud sync, or upload feature.
No. v1.0.4 finds byte-for-byte exact duplicates with SHA256, not visually similar or re-encoded media.
No. Scanning is read-only. Cleanup and restore actions require separate, deliberate confirmation.
The release targets 64-bit Windows 10 and 11. No Node.js, account, or internet connection is required.