FileGriffon checks your files for silent corruption.

An app that runs quietly in the background — verifying your files with cryptographic hashing, repairing damage with parity data, catching duplicates, and watching your drives' health — and more.

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FileGriffon

What FileGriffon is

FileGriffon is a background daemon that watches a drive or folder (a "vault") and cryptographically verifies your files over time. It flags corruption, missing files, and moved or renamed files, and can repair certain damage automatically using parity data. Everything runs locally — no cloud upload.

The idea: storage prices make "just buy a second drive and mirror it" a harder sell than it used to be. FileGriffon hardens the single drive you already have, at a fraction of the cost of buying redundant storage.

How it works

1

Point it at a folder or drive

Add any folder, drive, or NAS share as a "vault." No special formatting or preparation needed.

2

It scans on a schedule

Every file gets hashed and rechecked automatically in the background, on whatever cadence you set.

3

You get flagged, not surprised

Corruption, missing files, and moved or renamed files show up on the dashboard as soon as they're found — not whenever you next open the file.

Your data, plainly

No fine print required to answer the two questions that actually matter: where does your data go, and what does FileGriffon do to it.

Doesn't do
×

Upload your files to the cloud

Scanning, hashing, and the database all run on your machine. No file, filename, or folder structure ever leaves it.How we handle your data →

×

Encrypt your files

FileGriffon isn't an encryption tool. The only thing it can encrypt is its own local database, for your protection, never your files.Security & encryption docs →

×

Move or delete your files

Never. The only things FileGriffon ever deletes on disk are its own byproducts, like PAR2 recovery data, identified by exact internal naming, not by touching anything you own.How parity protection works →

×

Track what you do with your data

The only thing sent anywhere is a one-way, hashed machine fingerprint for license checks, nothing about your files, vaults, or activity. Usage telemetry is separate, off by default, and only sends anonymized counts if you opt in yourself.Licensing details →

Does do
✓

Helps you organize your files

The built-in Duplicate Finder surfaces exact copies sitting in your vault, with more organization tools planned.Duplicate Finder docs →

✓

Helps you use your drives more efficiently

FileGriffon never compresses or changes your data, it just helps you trust the storage you already have instead of buying more as insurance.

✓

Protects your files

Parity data can repair certain corruption automatically, and silent degradation gets flagged the moment a scan catches it, not whenever you next happen to open the file.Parity protection docs →

✓

Shows you your storage devices' health

Drive Info reads SMART data straight from the hardware, so failing drives show up before they take files down with them.Drive Info docs →

Full breakdown with specifics: FileGriffon's approach to privacy and data handling

Start free, stay free

The free tier isn't a countdown or a crippled demo. One vault, any size, for as long as you like.

Pro adds unlimited vaults, whole-drive vaults, email & webhook alerts, SMART drive health monitoring, and the full PAR2 redundancy tiers.A 14-day trial is built into the app— no card, no account, start it from Settings whenever you want.

Download freeCompare plans

Being built for people who can't afford to lose a single file

📷
Photographers
🗄️
Archivists
🎬
Video Editors
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NAS & Home Server Users

From the blog

View all posts →

September 8, 2026

Why Antivirus Flags FileGriffon, and What Our VirusTotal Report Actually Says

FileGriffon's v1.0.0 installer scored 2/69 on VirusTotal. Here is the report, an explanation of both detections, and why unsigned Nuitka-compiled software triggers antivirus heuristics.

August 26, 2026

FileGriffon and SnapRAID: Array Parity vs File-Level Verification

A practical comparison of SnapRAID and FileGriffon: how array parity and file-level verification differ, where each one fits, and when using both makes sense.

August 26, 2026

Silent Failure: Composite Stories of Bit Rot

Five composite bit-rot stories show how silent file corruption hides for months or years, and how regular hash checks can catch it before the file is needed.

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