UnbitDrag to Applications
Open the DMG and drag Unbit into your Applications folder. It lives in the menu bar, not the Dock.
Meet 
Unbit
Open BitLocker-encrypted USB drives on your Mac. Read-only, with no extra drivers. Just enter the password or recovery key.
How it works
Three steps from a locked drive to your files in Finder. The one-time setup takes about a minute.
Grant Full Disk Access
A short guide shows you where to switch it on in System Settings. You only do this once.
Plug in and unlock
Unbit spots the drive automatically. Enter the password or recovery key, and the drive opens in Finder.
Read-only, by design
Unbit attaches the unlocked drive to macOS as read-only. Nothing is ever written back, so your files, and the drive's BitLocker setup, stay exactly as Windows left them. Copy what you need, then eject.
Everything you need, nothing you don't
A small, focused menu bar app for one job: getting to the files on a BitLocker drive.
No drivers or macFUSE
No kernel extensions and no third-party file system layers. Unbit uses the disk image support already built into macOS.
Decrypts on demand
Only the parts macOS actually reads are decrypted, as they're read. No waiting for a full copy of the drive.
Detects drives automatically
Plug in a drive and it appears in Unbit right away. Unplug it and Unbit tidies up on its own.
Safe eject
One click closes the drive and ejects it, so you know when it's safe to unplug. Quitting closes an open drive first.
Remembers drives, if you want
Tick "Remember this drive" and the code is stored encrypted in your macOS keychain, never anywhere else.
Updates itself, notarized by Apple
Signed with Developer ID and notarized by Apple. New versions arrive through signed automatic updates.
Available in 11 languages – English, Danish, Swedish, Norwegian, German, French, Spanish, Italian, Dutch, Finnish and Polish.
Your drive never leaves your Mac
Decryption happens entirely on your Mac. Your password, recovery key and files are never sent anywhere. The app has no accounts, analytics or tracking. The only thing Unbit fetches from the internet is its daily update check.
- Decrypted data stays on your Mac
- Saved codes live only in your keychain
- No accounts, analytics or tracking in the app
Download Unbit
Free to download. One app for Apple silicon and Intel Macs running macOS 13 or later.
FAQs
Should I use the password or the recovery key?
Either one works. The password is the one chosen when BitLocker was turned on for the drive. The recovery key is the 48-digit key (8 groups of 6 digits) that Windows asked you to save at the same time, for example to a Microsoft account, a file or a printout. Pick whichever you have in the app.
Why does Unbit need Full Disk Access?
To decrypt the drive, Unbit has to read the raw, encrypted data straight from the USB device. macOS only allows that for apps with Full Disk Access. Unbit uses it to read the drive you choose and nothing else.
Can I write to the drive?
No. Unbit is read-only by design and never writes to the drive. You can open files and copy them to your Mac. To change files on the drive, use Windows.
Does it work on Apple silicon and Intel Macs?
Yes. Unbit is a universal app that runs natively on both Apple silicon and Intel Macs with macOS 13 Ventura or later.
Which drives are supported?
External drives and USB sticks encrypted with BitLocker or BitLocker To Go on Windows 7 or later, using AES-CBC (with or without the Elephant diffuser) or AES-XTS, with 128- or 256-bit keys. Once unlocked, macOS reads the file system on the drive itself.
Is my password stored anywhere?
Only if you tick "Remember this drive on this Mac". The code is then saved encrypted in your macOS keychain after a successful unlock, and you can forget it at any time from the gear menu. It's never sent anywhere.
Open your BitLocker drive
No Windows PC required.