Strong Password Generator Online — Free

Sixteen characters with mixed case and digits is plenty for ordinary sites. For email, banking and your password manager go to 24 or more — those accounts unlock everything else. The slider reaches 64, which makes sense for API keys and service accounts you copy and paste rather than type.

Untick «Characters (!@#$%^&*)» and buy the strength back with length: 24 letters and digits are harder to brute-force than 12 with punctuation. Some forms also silently truncate — if the field shows fewer characters than you generated, drop the slider to the stated limit and generate again.

No, and don't try. The whole point of a random string is that it has no connection to you and cannot be guessed, which also makes it unmemorable. Put it in a password manager — Bitwarden, KeePass, your browser's, or iCloud Keychain — and remember one master password instead of dozens.

No. Breaches happen constantly, and after each one attackers replay the leaked email-and-password pair against every popular service. That is credential stuffing, and reuse is the only thing that makes it work. Generate a separate string per account — clicking the button again costs you a second.

No. The string is assembled by a script on the page you already have open, it is never logged, and it disappears when you reload the tab — there is no list of previously generated passwords here. So copy it right away: once the page reloads, that particular string is gone for good.

Yes. The page opens in mobile browsers, the length slider drags with a finger, and the 📋 button copies to the phone's clipboard. On iOS, clipboard access needs the page served over HTTPS and a real tap from you — Safari blocks copying that a script starts on its own.

The neighbouring "Password Generator" page offers almost no options and suits you when any random string will do. This one gives you a length slider from 8 to 64 and a separate checkbox per character set, so you can shape the result to whatever a particular signup form demands.