How to Create a Strong Password — and Check If Yours Holds Up
Length beats complexity, uniqueness beats cleverness, and a manager beats your memory. Here's how to create passwords that actually resist cracking — and how to test the ones you already use.
Most "password rules" optimise for the wrong thing. Swapping an a for an @ doesn't help much — attackers' tools try those substitutions instantly. What actually makes a password hard to crack is simpler than the rules suggest.
What actually makes a password strong
- Length is king. Each extra character multiplies the number of guesses required. A long, random 16-character password is vastly stronger than a short "complex" one. Aim for 16+ characters wherever a site allows it.
- Randomness beats patterns.
Summer2026!follows a predictable shape (word + year + symbol) that cracking tools guess early. True randomness has no shape to exploit. - Uniqueness is non-negotiable. The real damage comes from reuse: one breached site hands attackers a password they'll try everywhere else (a "credential-stuffing" attack). Every account needs its own password.
Two workable strategies
- Random strings from a generator — the strongest option, because there's no pattern and no reuse. You're not meant to memorise these; a password manager stores them.
- A passphrase — four or five random, unrelated words strung together. Long enough to be strong, and possible to remember for the handful of passwords you must type by hand (like your device login or your manager's master password).
Generate, then verify
Two quick steps close the loop:
- Create a fresh, random one with the Password Generator — adjust length and character types, and never reuse it.
- Sanity-check an existing password with the Password Strength Checker, which estimates how resistant it is to cracking. Both run entirely in your browser — nothing you type is sent anywhere.
Then stop memorising them
Once every account has a long, unique, random password, you can't hold them in your head — and you shouldn't try. A password manager remembers them for you so you only memorise one strong passphrase. That's exactly the problem Pyalm Vault is built to solve, with zero-knowledge encryption so even the server never sees your credentials.
Related developer & security tools
Password Generator | Password Strength Checker | Hash Generator | All free tools