TOTP Generator

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

Security v1.0.0 23 uses

Base32 Secret Key

Digits

Period

Algorithm

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