Why your old password is no longer good enough
Most people still believe a strong password means stuffing it with !@#$ and a number on the end. That belief is twenty years old and has aged terribly.
Today’s attackers do not type guesses. They run leaked password lists, billions of real passwords from past breaches, against your account on a graphics card that tries millions of guesses per second. Your Tr0ub4dor&3 is on every list, and it falls in seconds, no matter how clever it felt when you picked it.
What still works is length. The trick in 2026 is making a password long enough to be unbreakable and easy enough that you actually remember it.
Length is the only thing that matters
Each random letter you add multiplies the number of possibilities an attacker has to try. Add another letter, and the work doubles. Add ten and the work is a thousand times harder. Add twenty and you are past the lifetime of every computer humanity has ever built.
A short clever password is weak. A long boring password is strong. The math is dull but it is unforgiving.
There is one catch. The letters have to be picked at random. A password you invented yourself, even a long one, is full of patterns that crackers know to look for: a name, a year, a hometown, the same substitution everyone makes (@ for a, 0 for o). Your brain is not a random generator, no matter how hard you try.
So the rule becomes simple. If you typed it from memory, it is weak. If a machine generated it from real randomness, it is strong.
Where the randomness has to come from
Not every “random” is the same. The simple random functions in JavaScript are predictable enough that a determined attacker can rebuild what they generated.
What you want is the cryptographic random source built into the browser, the one that pulls real noise from the operating system. The password generator on AldeaCode uses exactly that. You set the length, you click, you get a password. Nothing leaves your tab, nothing is logged, nothing is stored on a server. The whole thing runs in front of you.
If you want to peek at how it works, this snippet runs in any browser console:
const bytes = new Uint8Array(16);
crypto.getRandomValues(bytes);
const password = Array.from(bytes)
.map((b) => "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"[b % 62])
.join("");Sixteen characters, drawn from real randomness, in your browser, on your machine. That is what a strong password looks like.
The trick to remembering one
If you cannot accept a password that looks like gK4!pZ8nQwM2xV9b, you are not alone. The fix is not to make it shorter, the fix is to switch from random characters to random words.
Pick four to six random words from a long list, separate them with a space or a dash, and you get something memorable that is still impossible to crack.
correct horse battery staple
mute-hexagon-archer-thermal-pivot-quartzThe math here is the same as for random characters: more words means more possibilities. Four random words gives you decent security, six is bulletproof for any normal account.
The condition is the same as before. The words have to be picked at random by something that is not your brain. There are word lists made for this (search “EFF word list”) and apps that pick from them for you. Choosing them yourself, even with the best intentions, brings you back to “human invented, easy to crack”.
The honest tradeoff: a password manager
The strongest password in the world is useless if you reuse it. Every breach you have heard of, plus thousands you have not, is now public. The moment one site loses your password, every other site you used the same password on is at risk.
The whole point of unique strong passwords is that the damage stays contained. One account leaks, only that one account is at risk.
The realistic answer for a normal person is a password manager. You memorize one strong passphrase (use the random words trick) and the manager handles the rest, generating and storing 20 character passwords for every site, filling them in for you, syncing across your devices.
The big choice is local (KeePassXC, or Bitwarden you host yourself) versus cloud sync (1Password, Bitwarden cloud). Both are vastly better than reusing one password on twelve sites or keeping them in a notes app. If Bitwarden is your manager, the password generator tuned for Bitwarden outputs the exact character set the vault stores cleanly.
When you need a one off password without unlocking the manager, the password generator gives you one in two clicks. For a master passphrase, the reverse text and the word scrambler are not strong enough as defense by themselves, but they help when you want to obfuscate a written hint that points at it.
A practical routine you can start today
For accounts that hold anything you care about (email, bank, work, government), use a password manager and let it generate 20 character passwords for each one.
For the master passphrase, pick six random words from a real word list, type it twice a day for a week, and it will live in your fingers forever.
Turn on two factor everywhere it exists. A hardware key (YubiKey) or an authenticator app (Aegis, 2FAS) is much safer than SMS. Check your accounts on haveibeenpwned.com once a year and replace any password the site flags.
The single best move you can make today is to change the password on your primary email, because that account is the recovery point for everything else. From there, work your way down the list.
The password generator, the hash generator for the rare time you need to inspect a hash format, and the UUID generator for one off identifiers all run in your browser, with no upload, no log, no account needed. A strong password is not a clever phrase. It is a long, boring, random one.
Disclosure: Some of the product links above (Bitwarden, 1Password, YubiKey) point to vendors we recommend. As affiliate programs become available, those links may earn us a small commission at no cost to you. We only recommend tools we use ourselves and would link to anyway.