Authenticator TOTP (Delphi, FMX)

Lightweight, fast, and secure TOTP (2FA) authentication library for PHP — battle tested, dependency free, and ready for enterprise integration.

C++11 HMAC (SHA1/SHA256/SHA512) library with PBKDF2/HKDF, HOTP/TOTP + stateless time tokens, Base32/64/36, zeroizing secure_buffer, CMake package and MQL5 support.

An opensource TOTP app (like Authy, Google Authenticator, etc) created with Tauri (rust + typescript)

Manage a TOTP database by CLI

A Totp Client

A Flutter package to generate and verify TOTP codes with QR setup widget. Works on all platforms.

Generates TOTP tokens in the browser

A production-ready authentication template built with Spring Boot

Terminal TOTP Manager is a command-line tool for managing TOTPs

a UWP Platform OTP Authenticator

A simple 2-factor authentication manager in OTP (ONE TIME PASSWORD).

Debugging tool for time-based one-time password (TOTP).

Terminal integrated TOTP authentication tool

This project demonstrates a simple Time-based One-Time Password (TOTP) authentication flow using Go, Gin, and QR code generation.

A TOTP Authenticator app made in .NET Framework 4.5

High-performance and secure TOTP generator and validator in Go, supporting multiple hashing algorithms: SHA1, SHA256, SHA512, and BLAKE2.

Operation system for boards. The Operating System allows you to use the board as a security key.

Command Line application for managing your totp tokans, written in Bash script

Light-weight Do-It-Yourself Two-Factor Authenticator (2FA, from spreadsheet), Password-Manager (PWM), etc, recipes for terminal-based workflows