TOTP Generator

Generate Time-based One-Time Passwords (TOTP) for two-factor authentication testing.

Category: Security · v1.0.0

About This Tool

This TOTP generator creates Time-based One-Time Passwords compatible with the RFC 6238 standard, commonly used for two-factor authentication. It is designed for developers testing 2FA implementations, security professionals verifying authentication workflows, and users who need a browser-based alternative to authenticator apps. The tool generates codes from a shared secret key with a configurable time step and displays the remaining validity countdown.

How to Use

  1. Enter or paste the TOTP secret key (base32 encoded) for your account
  2. Configure the time step interval and code length if they differ from defaults
  3. View the generated one-time password with a countdown showing remaining validity
  4. Use the generated code for authentication testing or two-factor login