パスワード生成
crypto.getRandomValues()を使った強力なランダムパスワード生成。長さや文字種をカスタマイズできます。
使用 window.crypto.getRandomValues() 生成，拒绝模偏差，安全可靠。
関連キーワード
How to Use Password Generator
A strong password is your first line of defense against unauthorized access. Our Password Generator uses the Web Crypto API's `crypto.getRandomValues()` function — the same cryptographically secure random number generator used in security-sensitive applications — to create unpredictable, high-entropy passwords. You can customize the length (8–128 characters) and choose which character sets to include: uppercase letters, lowercase letters, digits, and special symbols. Generated passwords are never transmitted or stored anywhere. You can generate as many passwords as you need with a single click.
- 1
Set the length
Use the slider to choose how many characters your password should have (8–128).
- 2
Select character types
Check or uncheck uppercase, lowercase, numbers, and symbols to match your requirements.
- 3
Generate and copy
Click Generate to create a new password, then click Copy to copy it to your clipboard.
Frequently Asked Questions
Are the generated passwords truly random?
Yes. They use crypto.getRandomValues(), which is a cryptographically secure pseudo-random number generator (CSPRNG) built into modern browsers.
How long should a secure password be?
A minimum of 16 characters is recommended for most accounts. For critical accounts, use 24+ characters with all character types enabled.
Are passwords stored anywhere?
No. Passwords are generated entirely in your browser and are never transmitted to any server.