Is TOTP Generator free to use?

Yes, TOTP Generator is completely free to use. No signup or registration required.

Is my data safe when using TOTP Generator?

Yes, all processing happens in your browser. Your data never leaves your device and is not stored on any server.

Can I use TOTP Generator on mobile?

Yes, TOTP Generator is fully responsive and works on all devices including smartphones and tablets.

⚡AltraTools

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TOTP Generator

Generate time-based one-time passwords (2FA codes)

Secret Key (Base32)

Only Base32 characters (A-Z, 2-7) are allowed

Digits

Period

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Time remaining30s

About TOTP

Time-based One-Time Password (TOTP) is the algorithm used by Google Authenticator, Authy, Microsoft Authenticator, and other 2FA apps. It generates a unique code that changes every 30 seconds based on the current time and a shared secret.

TOTP Generator - 2FA Code Generator

Generate time-based one-time passwords (TOTP) compatible with Google Authenticator, Authy, and other 2FA apps. Uses RFC 6238 standard with HMAC-SHA1.

How TOTP Works

Uses a shared secret key (Base32 encoded)
Generates a new code every 30 seconds
Codes are 6-8 digits long
Used for two-factor authentication (2FA)

Use Cases

Test 2FA implementation in your apps
Verify authenticator setup
Generate codes without a phone