Password Generator
Create strong, secure passwords instantly.
パスワード強度없음
エントロピー
103 ビット
推定解読時間
数十億年以上
オプション設定
16
4163264
Other Utilities
Why Use Strong Passwords?
Weak passwords are one of the most common security vulnerabilities. Using strong, unique passwords for each account is essential for protecting your personal information and preventing unauthorized access.
What Makes a Password Strong?
- Length: At least 12 characters, preferably 16+
- Complexity: Mix of uppercase, lowercase, numbers, and symbols
- Randomness: No dictionary words or personal information
- Uniqueness: Different password for each account
Password Strength by Length
| Length | Time to Crack* | Recommendation |
|---|---|---|
| 8 characters | Hours to days | Minimum acceptable |
| 12 characters | Months to years | Good |
| 16 characters | Millions of years | Excellent |
| 20+ characters | Practically impossible | Maximum security |
*With mixed case, numbers, and symbols. Actual time varies.
Password Security Tips
- Use a password manager: Store passwords securely
- Enable 2FA: Add an extra layer of security
- Never reuse passwords: One breach shouldn't compromise all accounts
- Change compromised passwords: Check haveibeenpwned.com regularly
