OTP Authenticator: 2FA Codes

Poovarasan Vasudevan

About this app

Keep your two-factor authentication codes together in a clear, private vault. OTP Authenticator generates one-time passwords on your Android device, with quick access to the accounts you use most.

ADD ACCOUNTS YOUR WAY
Scan an otpauth QR code, pick a QR image, paste an otpauth link, or enter account details manually. Import supported authenticator backups and Google Authenticator migration QR codes when moving to a new phone.

CODES WHEN YOU NEED THEM
Generate time-based TOTP and counter-based HOTP codes, plus supported Steam and mOTP codes. Search, group, favorite, and reorder accounts. Copy a code with a tap and see when a time-based code is about to refresh.

KEEP CONTROL OF YOUR VAULT
OTP secrets are encrypted on the device using Android Keystore. Add an app lock PIN or biometric unlock, mask codes until you tap, and block screenshots in the app. A built-in security audit highlights useful protection settings and duplicate secrets.

MOVE AND BACK UP ON YOUR TERMS
Create a password-protected encrypted vault backup. Import or export compatible JSON, otpauth URI, and CSV formats, and transfer accounts with QR migration. Plain-text export options contain readable secrets, so choose an encrypted backup when storing a personal copy.

The app works without an online account or cloud sync. Your authenticator vault stays on your device unless you choose to export or share it.

OTP Authenticator supports 2FA, TOTP, HOTP, QR code setup, encrypted backup, and offline verification codes in one practical app.

What’s new

Initial Release