開発者ツール• Security
安全で強力なパスワードを自動生成
Protect your accounts with uncrackable, cryptographically randomized passwords. Customize length, character sets, and assess password strength.
Generated with window.crypto.getRandomValues(). Passwords are never sent over the internet.
Select at least one character type
Entropy: 117 bitsVery Strong
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強力パスワード生成 の使い方
1
Choose Length
Select your desired password length (8 to 64 characters).
2
Select Characters
Include uppercase, lowercase, numbers, and special symbols.
3
Copy
Copy your secure password directly to your clipboard.
強力パスワード生成 について
Passwords generated with proper CSPRNG randomness and length greater than 16 characters possess over 90 bits of entropy, rendering brute-force cracking mathematically infeasible.
主な機能
- Cryptographically secure randomness via `crypto.getRandomValues()`
- Configurable length from 8 to 64 characters
- Options to exclude ambiguous characters (e.g. 0, O, l, 1)
- Real-time password entropy and crack-time estimation meter
よくある質問
Never. The password exists solely in your browser's active tab memory until you close it or copy it to your password manager.