Health score & SMART
Full SMART attributes plus a clear 0–100 score and Good / Caution / Warning / Critical verdict.
Beta — $3.99 limited time
Know your drives before they fail.
Ferrite reads full SMART data, scores each drive's health, maps the surface for bad sectors, benchmarks speed, and watches your drives in the background — a native Windows app that never writes to your data.
Native & lightweight (~3.5 MB)
Read-only — never touches your data
Works on any drive type
Even on unformatted / RAW disks
English & Türkçe
Everything you need to understand your drives.
NVMe & endurance
NVMe health log, wear %, and estimated remaining life.
Surface scan
Non-destructive read across the whole surface — maps slow & bad sectors on a live grid. Full-read mode checks every sector.
Benchmark
Sequential transfer curve plus random 4K IOPS / latency.
Self-tests
Trigger ATA & NVMe self-tests, on a schedule.
Real-time monitor
Background tray monitoring, temperature warnings, and optional email alerts.
History & trends
Persistent temperature / health / wear trends over time.
Reports
Export a health report (HTML / CSV / JSON / text).
Every drive type
SATA SSD & HDD, NVMe, USB externals, flash / memory cards.
Safe by design
Read-only — never writes to your drives.
The real app, on a real 8-drive test bench.
Why Ferrite
Professional disk diagnostics — safe, native, beautiful.
Native, not bloated
A tiny Rust core behind a modern interface — a ~3.5 MB installer, not a 150 MB Electron app. Fast to open, light to run.
Read-only by design
Ferrite opens drives for reading only and never writes to them. Inspecting your storage should never put your data at risk.
Works on any disk
It works at the physical-drive level — reading SMART, health and surface even on unformatted or RAW disks Windows can't mount.
One-time. Yours to keep.
Beta — limited time
$3.99
$29.99 from 2027 · one-time, perpetual license
- All features — no limits
- 1 perpetual license, up to 3 devices
- Free updates during beta
- Instant license key by email
Secure checkout via Polar — we never see your card. VAT/tax handled by Polar.
Up and running in three steps.
1
Download
Download the installer (free to download) and run it.
2
Buy
Buy a license on Polar for $3.99 → get a FERRITE-… key by email.
3
Activate
Paste the key into the app's activation screen. Done.
System requirements
- Windows 10 / 11 (x64) — macOS coming
- ~3.5 MB installer · WebView2 (built into Windows 11)
- Administrator rights for full SATA/ATA SMART (the app prompts once via UAC); NVMe health needs no admin
Beta note — SmartScreen
During the beta the installer isn't code-signed yet, so Windows may show a SmartScreen “Unknown publisher” prompt. Click More info → Run anyway. Signed builds are coming.
Frequently asked
Is it safe? Can it damage my data?
No. Ferrite is read-only by design — it opens drives for reading only and never writes to them.
Does it work on an unformatted / RAW / “dead” disk?
Yes. Ferrite works at the physical-drive level, so it reads SMART, health and the surface even on disks Windows can't mount or that have no filesystem. (If Windows asks to “initialize” a new disk, you can cancel — Ferrite doesn't need it.)
How many computers can I use one license on?
Up to 3 devices. You can deactivate a device from your Polar customer portal to free a slot.
Windows shows an “Unknown publisher” warning — is that ok?
During the beta the installer isn't code-signed yet. Click More info → Run anyway. Signed builds are coming.
Which drives are supported?
SATA SSDs & HDDs, NVMe SSDs, USB external drives, and flash / memory cards. Windows 10/11 (x64).
Refunds?
Handled by Polar (our payment provider) per their terms.
Is there a Mac version?
Not yet — Windows first; macOS is planned.