先進的なカスタマイズで暗号学的に安全なパスワードを生成
サイバーセキュリティの専門家とセキュリティ意識の高いユーザー向けの軍事グレードのパスワード生成
破壊不可能なパスワードのための軍事グレードの暗号学的に安全な乱数生成
任意の要件に対応した長さ、文字セット、除外、カスタムパターンの完全な制御
リアルタイムのエントロピー計算、クラック時間推定、詳細なセキュリティ推奨
バッチ処理とエクスポート機能で複数のパスワードを同時に生成
実行可能なセキュリティ改善提案付きのライブパスワード強度視覚化
すべてのパスワード生成はローカルで行われ、データ送信や保存は一切ありません
よくある質問
At least 12 characters for standard accounts, 16+ for sensitive accounts like banking or email. Each additional character exponentially increases the time needed to crack it. Our generator supports up to 256 characters.
Length combined with randomness. A human-chosen 20-character password is weaker than a randomly generated 12-character one because humans follow predictable patterns. Our tool uses your browser's cryptographic random number generator (CSPRNG) for true unpredictability.
Passphrases like 'correct-horse-battery-staple' are easier to remember but need 4+ random words to match a 12-character random password's strength. Use passphrases for accounts you type manually, random passwords for accounts with a password manager.
Yes — our generator runs entirely in your browser using JavaScript. No passwords are sent to any server, stored in any database, or logged anywhere. You can verify this by disconnecting from the internet and using the tool offline.
Only when a breach is suspected. NIST guidelines no longer recommend routine password rotation — it leads to weaker passwords. Instead, use unique random passwords per account and enable two-factor authentication.
Yes, our bulk generation feature creates hundreds of passwords simultaneously with consistent security settings. This is useful for provisioning team accounts, testing environments, or generating API keys.
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