The same holiday in 3 copies
Years of phone backups, camera imports, "just in case" copies. You no longer know what you have, and you no longer dare to delete anything.
NAS Ranger hunts down the duplicate files already on your NAS and stops you from creating new ones. No cloud, no account, nothing deleted behind your back.
The problem
The NAS was supposed to bring order. Today it's become a digital attic.
Years of phone backups, camera imports, "just in case" copies. You no longer know what you have, and you no longer dare to delete anything.
Instead of cleaning up, you buy another disk. And another. And the mess starts again, just with more room to spread out.
Deduplication tools are scary: what if you delete an important file by mistake? The result: you do nothing, and the mess gets worse.
NAS Ranger sorts things out for you. Without deleting anything behind your back.
Two jobs, one tool
NAS Ranger answers two concrete needs — separately or together.
NAS Ranger scans your NAS and pinpoints the files that are already duplicated. It tells you where they are, how big they are, and how many GB you'll reclaim by sorting them out. Then you decide what to keep.
Point it at a local folder — your new photos, an SD card, an old hard drive. NAS Ranger instantly compares it with your NAS and copies only the files that are truly new. No more duplicate copies, ever.
89 new
→ to copy
38 already on the NAS
→ skipped
How it works
A guided flow inside the app — no IT skills required.
NAS Ranger automatically detects the NAS devices on your network (mDNS), or connects straight to an IP address. Several NAS units, several volumes — handled in parallel.
A local index of your whole NAS is built in a few minutes — path, size, date. The next scans are incremental: only what changed is re-read.
View the existing duplicates and the GB you can reclaim, or use the Sorting Gate to import new files without creating any. You decide at every step.
Why trust us
Four non-negotiable guarantees — that's what sets NAS Ranger apart from the tools that scare you.
Detection informs, it deletes nothing. No irreversible action is taken without your explicit decision.
No cloud. No account. No telemetry. Your files and their fingerprints never leave the "your computer ↔ your NAS" triangle.
Comparison by Blake3 cryptographic fingerprint. No false positives, no missed duplicates — even if the files were renamed.
If a folder can't be read, you know it: NAS Ranger tells you which ones, and why. No silent loss, no blind spots.
Compatibility
NAS Ranger speaks SMB natively — it works with every NAS on the market and every mainstream operating system.
Compatible with every SMB NAS
…and any server exposing an SMB 2 or SMB 3 share.
For those who want to know more
NAS Ranger is not a script wrapped in a browser. It's a binary compiled in Rust, self-contained, that speaks SMB 2/3 directly — without having to mount the network share first.
100% Rust stack
Robust binary, zero system dependencies, instant startup.
Native SMB 2/3
No need to mount the share, no tinkering, no extension to install.
SQLite index
Detailed per-volume statistics, readable and auditable.
Blake3 + size filter
Most files are ruled out before any hashing.
Cached fingerprints
The next scans are near-instant, even on terabytes.
Multi-NAS, multi-volume
Manage several servers in parallel without switching windows.
They use it
« I no longer dared to delete anything on my Synology. NAS Ranger showed me 240 GB of duplicates. I was able to put off buying a new disk. »
Camille
Home user · Synology DS220+
« The Sorting Gate keeps me from re-copying RAW files I already imported. On a project that's hours saved, and NAS storage that costs me less. »
Thomas
Freelance photographer · QNAP TS-453D
« Finally a clean, cross-platform tool that speaks SMB directly. The Rust stack reassures me, and the binary drags along no dependencies. »
Marc
Homelabber · TrueNAS Scale
One-time purchase. Yours forever. On all your machines. With updates delivered continuously, at no extra cost.
One app, all your platforms
FAQ