Keyring

Make a strong password, or find out how weak the one you're using really is.

๐Ÿ”’ Runs entirely offline โ€” nothing you type is ever sent anywhere
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How the strength estimate works: it counts how many characters could be in each position, works out how many guesses that allows, and divides by a fast offline cracking rate โ€” roughly a hundred billion attempts a second, which is what a determined attacker with modern hardware can manage against a badly stored password. It also penalises the patterns crackers try first: dictionary words, keyboard runs like qwerty, repeated characters, years, and the classic letter-for-symbol swaps such as a zero for an O. Those tricks add almost nothing, because every cracking tool already knows them.

What actually protects you: length, and never reusing a password. A long passphrase beats a short scramble, and a unique password per account means one breach doesn't unlock everything else. Use a password manager to hold them โ€” remembering thirty strong passwords is not a thing humans do. Nothing you type on this page is transmitted or stored; you can disconnect from the internet and it keeps working.