Top 7 2factor open source projects

Generating 2FA codes in your terminal

Short term certificate based identity system (ssh/x509 ca + openidc)

Two factor authenticator for CLI

Straightforward password, passphrase, TOTP, and HOTP user authentication

TOTP를 이용한 인증관리 Web/App 서비스, '다다익선'

Advanced Spear Phishing tool for Facebook with 2 factor authentication bypass! May contain minor bugs due to...idk

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