🔒 Free Strong Password Generator
Generate cryptographically secure, random passwords with custom length and character options. All generation happens locally — nothing is sent to any server.
What Makes a Password Strong?
Password strength comes from length and character diversity. A 16-character password using uppercase, lowercase, numbers, and symbols has over 10 trillion possible combinations — impossible to crack by brute force. Length matters more than complexity: a 20-character password of random words is stronger than a 10-character random string.
Best practices: use a unique password for every site, never reuse passwords, store them in a password manager, and enable two-factor authentication wherever possible. This generator uses the Web Cryptography API (crypto.getRandomValues) for true randomness, not Math.random().