Password Generator

How Our Password Generator Works

This password generator uses cryptographically secure random number generation through the Web Crypto API to create passwords that are virtually impossible to predict. Unlike simple random functions, our algorithm ensures true randomness for maximum security.

Why Password Length Matters

With modern computing power and GPU-based cracking, short passwords are increasingly vulnerable. Here's how long it would take to brute-force passwords of different lengths:

• 8 characters: Minutes to hours with current technology
• 12 characters: Centuries under ideal conditions
• 16 characters: Billions of years (practically uncrackable)

Character Set Importance

Each character type you include exponentially increases the possible combinations:

• Only lowercase letters: 26 possibilities per character
• + Uppercase letters: 52 possibilities per character
• + Numbers: 62 possibilities per character
• + Symbols: 70+ possibilities per character

A 12-character password with all character types has over 3.2 × 10²¹ possible combinations.

Security Best Practices

For maximum security with our generator:

• Use at least 16 characters for important accounts (email, banking)
• Always include all character types (uppercase, lowercase, numbers, symbols)
• Generate a unique password for every account
• Store passwords in a reputable password manager
• Enable two-factor authentication wherever possible
• Never use personal information (names, birthdays, pets)
• Avoid common patterns and sequential characters

Technical Details

All password generation happens 100% locally in your browser. No data is sent to our servers. We use window.crypto.getRandomValues() which is the recommended method for cryptographic randomness in web applications. This function provides random values that are suitable for cryptographic purposes, unlike Math.random() which is not cryptographically secure.

The algorithm works by creating a pool of allowed characters based on your selections, then selecting random characters from that pool using cryptographically secure random numbers. This ensures that every character position is independently random and unpredictable.

Common Password Mistakes to Avoid

Even with a strong generator, users can make mistakes:

• Password reuse: Using the same password across multiple sites
• Writing passwords down: Physical notes can be lost or seen
• Sharing passwords: Even with trusted individuals
• Not updating passwords: After a data breach or suspicious activity
• Using keyboard patterns: Like "qwerty" or "1qaz2wsx"