gen-totp

A time-based One-time Password generator that uses current time as a source of uniqueness, following RFC 6238.

generate-otp

'generate-otp' is simple one time password generator and can be used as password generator.

otp-gen-agent

A small and secure one time password (otp) generator for Javascript based on nanoid

totp.js

Two-factor authentication implementation in pure javascript. One-time password generator (HOTP/TOTP) with support for Google Authenticator.