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TOTP / 2FA Debugger

Generate and validate Time-based One-Time Passwords (TOTP) from a secret key, perfect for testing 2FA implementations.

About

  • Enter a base32 secret to generate the current 6-digit TOTP token
  • Countdown timer showing when the token will expire
  • Validate an existing token against a secret
  • 100% client-side logic to ensure your 2FA secrets are safe

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