Password Generator

What is Password Generator?

A password generator creates random passwords that are far harder to guess or brute-force than anything a human invents. This one draws randomness from the browser's cryptographically secure generator (crypto.getRandomValues) and lets you tune length and character sets — uppercase, lowercase, digits, symbols. Because everything happens locally, generated passwords are never transmitted or saved anywhere.

How to generate a strong password

1. 1Choose a length — 16+ characters is a solid baseline.
2. 2Enable the character sets you want (uppercase, lowercase, digits, symbols).
3. 3Click generate; a new random password appears using secure randomness.
4. 4Copy it into your password manager, then close the tab.

Use Cases

Code Examples

k7$Rm2!vQx9@Lp3Z
Y#8fW1nD6^tGh0Bs   (store these in a password manager)

Key Concepts

Entropy

A measure of unpredictability in bits. More length and a larger character set mean higher entropy and exponentially more guessing effort.

CSPRNG

A cryptographically secure pseudo-random number generator (crypto.getRandomValues). Unlike Math.random, its output is unpredictable and safe for secrets.

Length beats complexity

Adding characters increases entropy faster than adding symbol types. A long password of only letters can beat a short one with symbols.

Tips & Best Practices

• ▸Use 16+ characters for regular accounts and 20+ for high-value ones; pair with 2FA.
• ▸Never reuse passwords across sites — store unique ones in a password manager.
• ▸Length matters more than exotic symbols; a longer password is exponentially stronger.
• ▸This tool uses crypto.getRandomValues, not Math.random — the latter is predictable and unsafe for secrets.