totp

Authentication server for nginx that supports TOTP (Time-based one-time password)

Password manager using age as backend; inspired by pass

Simply beautiful or beautifully simple OTP generator.

Security Layer

Java Card application that generates TOTP codes

Multi-purpose OTP token generator written in C++ and Qt with encryption and System Tray Icon. Supports TOTP, HOTP, Authy and Steam and custom digit lengths and periods.