Ghost Auth
Ghost Auth: A privacy-focused authenticator with encrypted storage, backups, sync, and broad imports. Ranked #42 of 111 in Authenticator Apps by our editors (5.0/10); pricing: Free plan; best for open-source users needing broad platform coverage.
At a glance
- Editor score5.0 / 10
- PricingFree plan
- Best forOpen-source users needing broad platform coverage
- Free planYes
- Paid fromFree
- Facts checked21 Sep 2026
Where it wins
- GPL v3 open-source TOTP authenticator with encrypted local storage
- Supports Windows, macOS, Linux, iOS, Android, and browser extensions
- Encrypted backups, local-network sync, iCloud sync, and broad imports
Where it doesn't
- Official homepage currently labels desktop downloads as coming soon
- Local-network synchronization is limited to device-to-device syncing
- Biometric unlocking is available only on supported mobile devices
Our verdict on Ghost Auth
Ghost Auth is an open-source authenticator for generating TOTP codes across mobile devices, desktop operating systems, and browser extensions. It suits users who want a privacy-focused alternative with no account requirement, cloud storage, analytics, or advertising. Setup supports QR-code scanning and manual otpauth:// entry, while TOTP compatibility includes RFC 6238 and SHA-1, SHA-256, and SHA-512. The product is developed by Kestrel AS and is distributed under the GPL v3 license.
The published Free plan costs $0 and includes the GPL v3 license, TOTP code generation, and encrypted local storage. Its platform coverage includes Windows, macOS, Linux, iOS, Android, Chrome, Firefox, and Edge. Ghost Auth also supports imports from Google Authenticator, Aegis, 2FAS, andOTP, FreeOTP+, Ente Auth, Bitwarden, and Proton. The official homepage currently labels desktop downloads as coming soon, while the stated platform support includes desktop systems and browser extensions.
Security and recovery features are central to the product. Local data uses AES-256-GCM encryption, accounts can be protected with a PIN and recovery codes, and escalating rate limits are included. Password-protected encrypted backup and restore add a portable recovery path. Device-to-device synchronization is end-to-end encrypted over a local network, browser extensions can synchronize, and Apple devices can use an encrypted iCloud vault. Ghost Auth is a strong fit for open-source users who prioritize encrypted storage and wide platform support; users seeking a broader password manager or immediately available desktop downloads may prefer another option.
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Ghost Auth pricing
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Ghost Auth fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Code type | Totp |
| Push approvals | Not verified |
| Encrypted backup | Yes |
| Multi-device sync | Yes |
| Team administration | Not verified |
| Supported platforms | iOS, Android, Chrome, Firefox |
| Deployment | Mobile, Browser extension |
| Platforms | iOS, Android, Chrome extension |
| Support | Email, Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 4 integrations: Google Authenticator, Aegis, 2FAS, andOTP |
| Pricing | Free plan (source) |
| Website | ghostauth.org |
| Facts checked | 21 Sep 2026 |
Ghost Auth integrations
Ghost Auth lists 4 integrations on its own site.
- Google Authenticator
- Aegis
- 2FAS
- andOTP
Alternatives to Ghost Auth
- Proton AuthenticatorA mature free option for secure 2FA codes across mobile and desktop platforms.9.4
- Google AuthenticatorA free, straightforward authenticator with offline codes, sync, and QR transfers.9.2
- AuthyA focused free authenticator for mobile users who need synced TOTP tokens.9.1
See all Ghost Auth alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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