A free, secure and open source app for Android to manage your 2-step verification tokens.
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Feb 24, 2026 - Java
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otp
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[Unmaintained] Open source two-factor authentication for Android
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Jun 14, 2022 - Java
A custom view to enter otp of different sizes used usually in cases of authentication.
android otp authentication android-library custom-view compose otpview android-pinview jetpack-compose compose-library
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Jan 27, 2024 - Java
Authorizer is a Password Manager for Android. It emulates an HID keyboard over USB and enters your credentials on your target device. Additionally it supports OTP 🔑📴
android security otp encryption usb hid password-manager gpg bluetooth smartphone password-store gpg-encryption usb-hid keyboard-emulation bluetooth-hid auto-type
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Apr 19, 2024 - Java
A one-time password (HOTP/TOTP) library for Java
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Apr 14, 2026 - Java
Keycloak Authentication Provider implementation to get a 2nd-factor authentication with a OTP/code/token send via SMS (through AWS SNS). Demo purposes only!
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May 7, 2025 - Java
A customised EditText view serving the purpose of taking numeric One Time Password from a user. With stunning animation, and high customizability.
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Mar 26, 2021 - Java
React Native wrapper for Android's SMS User Consent API, ready to use in React Native apps with minimum effort.
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Nov 17, 2025 - Java
TOTP and HOTP Token for Andriod Devices
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Feb 25, 2021 - Java
HOTP/TOTP one time passwords on java phones (J2ME)
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Mar 18, 2024 - Java
OneTrickPony is a modern Java library that implements support for One-Time Passwords. Built-In support is provided for the HOTP (RFC 4226) and TOTP (RFC 6238) algorithms.
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Apr 26, 2026 - Java
Generate OTP tokens for Samsung Service Mode to activate hidden debug/dumping features. (*#9900#)
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Oct 25, 2024 - Java
Passwordless authentication server, supports OTP, WebAuthn and TOTP
otp spring authentication microservice sms totp passwordless otpauth 2fa otp-server otp-generator webauthn otp-verification
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Nov 21, 2025 - Java
Keycloak plugin for logins using phone number
otp keycloak authentication phone-number openapi keycloak-provider authenticator otpauth openapi3 keycloak-spi keycloak-authenticator
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Apr 13, 2026 - Java
🔒 OTP (One Time Password) utility in Java
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Mar 15, 2025 - Java
OTP-Pi is a server for sending SMS via HTTP, WebSocket and Message Broker protocols. Users can install OTP-Pi on the server with a static IP address that can be accessed by clients who will send SMS. In addition, users can also install OTP-Pi on servers with dynamic IP addresses. This server then accesses a websocket server, a Redis server, an M…
java raspberry-pi otp sms sms-api otp-applications sms-gateway otp-server otp-generator otp-library sms-sender otp-verification sms-bulk sms-gateway-center sms-gateway-api otp-device sms-blast otp-broker
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Feb 13, 2024 - Java
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