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Free Password Generator Online - Secure Random Passwords & Keys

Secure Random Generation

True randomness is essential for security. Predictable passwords and keys can be guessed by attackers. Our generators use the Web Crypto API—the same cryptographic foundation used by browsers for HTTPS—to ensure unpredictable output.

Password Security

Strong passwords resist brute-force attacks through length and complexity. A 12-character password with mixed case, numbers, and symbols has roughly 72^12 (about 10^22) possible combinations. Adding just 4 more characters makes it exponentially harder to crack.

Password requirements:

  • Length: Minimum 12 characters, 16+ recommended
  • Character variety: Uppercase, lowercase, numbers, symbols
  • Uniqueness: Never reuse passwords across sites
  • Randomness: Avoid patterns, words, or personal information

API Keys and Tokens

API keys authenticate software requests. They should be long (32+ characters), completely random, and treated as secrets. Never commit API keys to version control or include them in client-side code.

Why Browser-Based Generation?

Server-side password generators require trusting that the server doesn't log or store generated passwords. Browser-based generation eliminates this risk—your passwords exist only in your browser memory and are never transmitted. This is particularly important for high-security credentials.

Using Password Managers

Generate strong, unique passwords for every account and store them in a password manager. This approach eliminates password reuse (the leading cause of credential compromise) while keeping passwords accessible across devices.


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