8文字パスワード生成

基本保護用8文字パスワード。

100%安全 無料・無制限 登録不要 ブラウザ上で動作

📋 When to Use 8-Character Passwords

8 characters is the historical minimum still accepted by many websites. Suitable for low-value accounts like forums or newsletters. Not recommended for email, banking, or social media. With all character types, an 8-char password can be cracked in ~5 minutes using a modern GPU. Consider upgrading to 12 characters for better security.

📊 Technical Breakdown — 8-character

  • Entropy: 46 bits (full) / 38 bits (letters+digits)
  • Crack time: ~2 hours (GPU cluster)
  • Security level: Weak
  • Best for: Low-value accounts behind VPN

All calculations assume 8-character with mixed character types. Actual security depends on specific character selection.