100% Offline & Private

Secure your digital life with ZeroAuth

Secure your digital life with ZeroAuth. A privacy-first authenticator app built for complete control and security.

Thousands of people love it ❤️

Uncompromising Security

Everything you need to keep your accounts safe, with none of the cloud risks.

Offline-first

Your codes are generated locally on your device without any internet connection required.

Internet Connection

Local Vault

No cloud
dependency

We don't store your secrets on our servers. Your data stays entirely in your control.

Encrypted
backups

Create standard AES-256 encrypted backup files that you can securely store anywhere.

ZeroAuth_Backup

AES-256 Encrypted

Ready to Backup

Encrypting100%

Biometric
+ PIN

Lock your authenticator with a secure PIN, backed by hardware-level biometric authentication.

QR import
& migration

Easily import from other authenticators or migrate your entire vault via encrypted files.

Is your password already breached?

ZeroAuth uses k-anonymity — your actual password never leaves your device.

Live Breach Check

Check against 10 billion+ known breaches.

Secure Channel

Uses the HIBP k-anonymity protocol — only the first 5 characters of your password's SHA-1 hash are transmitted. Your password never leaves your browser.

Clean, Minimal UI

A distraction-free interface designed to get you your codes as quickly as possible without visual clutter.

Fast OTP Generation

Highly optimized local cryptographic operations ensure your tokens are generated instantly when you open the app.

Secure Storage

Secrets are stored securely in your device's keychain/keystore, making them inaccessible to other apps.