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TOTP Generator

Generate time-based one-time passwords for two-factor authentication

Free Client-Side No Login No Storage
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HMAC Generator Generate HMAC message authentication codes — SHA256, SHA512, SHA1, MD5 SHA-1 Hash Generator Generate SHA-1 hashes — for legacy compatibility checks Password Strength Checker Real-time password analysis with entropy, crack time, and improvement tips

How to Use the TOTP Generator

  1. Enter your Base32 secret (from your authenticator app setup).
  2. Choose digits (6 or 8) and period (30s or 60s).
  3. Click Generate Code — auto-refreshes each period.

Uses HMAC-SHA1 per RFC 6238. Compatible with Google Authenticator, Authy, etc. Your secret never leaves your device.