How to Create a Strong Password (That You'll Actually Remember)
Most people use terrible passwords. Here's the science behind what makes a password strong, and a practical system for creating secure ones.
The average person reuses the same 3–5 passwords across dozens of accounts. When one gets breached, everything falls like dominoes. In 2024, over 3 billion credentials were exposed in data breaches — and the majority were crackable within hours.
What Makes a Password "Strong"?
Modern security research has shifted away from complexity rules (capital letters, symbols) toward two core principles:
Length. A 16-character lowercase password is exponentially harder to crack than an 8-character mixed-case one. Each additional character multiplies the search space.
Unpredictability. Patterns ("Password1!", "Iloveny2024") are predictable because attackers use sophisticated dictionaries. True randomness matters.
The Math of Password Cracking
| Length | Character set | Combinations | Time to crack (modern GPU) |
|---|---|---|---|
| 8 | Lowercase | 208 billion | < 1 hour |
| 8 | Mixed + symbols | 6.6 trillion | ~7 hours |
| 12 | Lowercase | 95 quadrillion | ~200 years |
| 16 | Lowercase | 4.4 × 10²² | Effectively forever |
The Passphrase Method
Four random words strung together — "correct-horse-battery-staple" — are long, memorable, and statistically stronger than most short complex passwords. This is the approach recommended by NIST (National Institute of Standards and Technology).
For Accounts Where You Can't Use Passphrases
Use a password manager (Bitwarden, 1Password, Dashlane) to generate and store truly random strings like k9#mP2vQ!xLr4tN. You only need to remember one master password.
What to Avoid
- Never reuse passwords. One breach exposes all accounts.
- Never use personal info. Birthdays, names, and pet names are in attacker dictionaries.
- Never store in plain text. Notes apps, Slack messages, and spreadsheets are not secure.
Ready to Generate a Secure Password?
Our password generator creates cryptographically random passwords using your browser's built-in crypto API. Nothing is sent to a server — your password is generated entirely on your device.