Zunoy Authenticator

Protect any account, anywhere — Zunoy Authenticator is the fast, privacy-first 2FA app with offline code generation and zero-knowledge encrypted cloud backup.

Works with Google, Instagram, Facebook, Twitter, GitHub, Dropbox, and thousands of other apps and services that support two-factor authentication. Stop account takeovers and password leaks. Zunoy Authenticator adds an essential second layer of verification to every sign-in, generating secure Time-Based One-Time Passwords (TOTP) directly on your device — no server, no exposure.

Why Choose Zunoy Authenticator?

No Sign-Up Required — Download and generate codes instantly. No email or phone number needed.

100% Offline Generation — Generate 6-digit 2FA codes anywhere, without Wi-Fi or cellular data.

Zero-Knowledge Cloud Backup — Never get locked out. Back up and sync across devices using a personal encryption key only you control.

Biometric App Lock — Secure the app with Fingerprint or Face unlock.

Screenshot Protection — Prevent sensitive codes from being captured or saved to your gallery.

Import & Export Freely — Migrate from Google Authenticator or export your vault as a secure file anytime.

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One authenticator for every account you own. Zunoy is built on a local-first, zero-knowledge architecture — your secrets never leave your device unencrypted, and we never track or monetize your data.

Download Zunoy Authenticator and secure every account, not just one.