Sécurité

Générateur TOTP / 2FA

Générez des mots de passe à usage unique basés sur le temps (TOTP) depuis une clé secrète — compatible avec Google Authenticator

TOTP Generator

RFC 6238 — Time-based One-Time Passwords via WebCrypto

Current Code
30s
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Valid for 30 more seconds

Technical Details

Algorithm

HMAC-SHA1

Period

30 seconds

Digits

6

Time Slot (T)

59296148

Security Notice

Scan the secret with Google Authenticator or Authy to verify codes match. Never share your secret key — it grants full access to generate valid codes.

TOTP / 2FA Code Generator

Generate time-based one-time passwords (TOTP) from a secret key — compatible with Google Authenticator, Authy, and any RFC 6238 authenticator app. Runs 100% in your browser.

FAQ

What is TOTP?

TOTP (Time-based One-Time Password) is a 6-digit code that changes every 30 seconds. It's the second factor in 2FA — even if someone has your password, they can't log in without the current TOTP code.

How does TOTP work?

TOTP = HMAC-SHA1(secret_key, floor(current_unix_time / 30)), then take the last 6 digits. The server and your authenticator app derive the same code independently — no network call needed.

Is this tool safe to use?

This tool is for testing and development. Never enter your real 2FA secrets into any online tool. Use your authenticator app for production accounts.

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Générateur TOTP / 2FA — Outil Gratuit en Ligne | FreeTool24 | FreeTool24