How Strong Passwords Actually Work (And Why Length Beats Complexity)

Most advice about "strong passwords" focuses on the wrong thing. Requiring a capital letter, a number, and a symbol feels secure, but it's length — not complexity — that does the heavy lifting against modern password-cracking attacks.

Why Length Matters More Than Symbols

A password is cracked by brute force: trying combinations until one works. Every extra character multiplies the number of possible combinations, while adding symbol requirements to a short password barely moves the needle. A 16-character password using only lowercase letters is dramatically harder to crack than an 8-character password packed with symbols.

What Actually Makes a Password Strong

• Length: aim for at least 12–16 characters for anything important.
• Randomness: a password generated from truly random characters is far stronger than a "clever" pattern — patterns are exactly what attackers' tools are built to guess.
• Uniqueness: reusing a password across sites means one breach compromises every account that shares it.

A Common Mistake: Predictable Substitutions

Swapping "a" for "@" or "e" for "3" doesn't help as much as people think — these substitutions are well known and built into cracking dictionaries. A genuinely random string beats a "clever" pattern every time.

Generate One You Can Trust

Our Password Generator creates cryptographically random passwords using your browser's built-in Web Crypto API — the same technology used for secure cryptographic operations — with adjustable length and character sets. Nothing is sent to a server; the password only ever exists on your screen.