Generate strong random passwords with custom options
Yes, completely free. Generate unlimited passwords — no limits, no tracking, no account needed.
No. Passwords are generated entirely in your browser using the Web Crypto API. They are never transmitted, stored, or logged — not even in your browser's local storage. The password exists only in your clipboard after you copy it.
A strong password has three properties: (1) Length — this is the most important factor. A 16-character random password has about 10^30 possible combinations, making brute-force attacks infeasible. Each additional character multiplies the search space by the character set size. (2) Character diversity — using all four character sets (upper, lower, digits, symbols) maximizes entropy per character. (3) Randomness — human-chosen passwords follow predictable patterns (keyboard walks, dictionary words with number substitutions). Use a cryptographically secure random generator like this tool. Best practices: use a unique password for every service (password reuse is the #1 cause of account compromise), use a password manager (Bitwarden, 1Password, or browser-built-in) to generate and store passwords, enable two-factor authentication (2FA/TOTP) wherever possible, and never share passwords via email, chat, or unencrypted channels. For maximum security, use passphrases (e.g., "correct-horse-battery-staple") — they are easier to remember and type while maintaining high entropy.