yet another TOTP 2FA Authenticator for HarmonyOS NEXT.

One Time Password (HOTP/TOTP) library for Node.js, Deno, Bun and browsers.

📱 Two-Factor Authentication (2FA) client for Android + Wear OS

A comprehensive Node.js package that simplifies the implementation of One-Time Password (OTP).

2FA Authenticator

A Go implementation of the HOTP (RFC 4226) and TOTP (RFC 6238) algorithms.

A Material You Two-factor Authentication app

Kotlin Multiplatform implementation of One Time Passwords Manager that compiles to native code on all platforms from single codebase

A free, secure and open source app for Android to manage your 2-step verification tokens.

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.

Lightweight, thread-safe Java/Kotlin TOTP (time-based one-time passwords) and HOTP generator and validator for multi-factor authentication valid for both prover and verifier based on shared secret

A Go implementation of Yubico's YKOATH protocol

Simple OTP library for Rust.

Enhanced fork of FreeOTP-Android providing a feature-rich 2FA authenticator

PHP library that generates and verifies one-time passwords.

Cross-platform console C#/.Net implementation to generate one time passwords (TOTP/HOTP) for open authentication defined by standard RFC's (4226, 6238). Compatible with Google/Microsoft Authenticator apps.

A Web app to manage your Two-Factor Authentication (2FA) accounts and generate their security codes

Generador de HOTP y TOTP

Trustworthy, encrypted, command-line TOTP/HOTP authenticator app with import functionality.