Password Generator

Password Strength: What Actually Matters

Password strength is measured in entropy — how many guesses an attacker needs. Two things drive it: length and character variety. Length matters more: each extra character multiplies the search space.

1. Length Beats Complexity

A 20-character lowercase password is far stronger than an 8-character one with every symbol. If a site allows it, go long first, then add variety.

2. One Account, One Password

Reuse is the real killer: one leaked database unlocks every account sharing that password. Use a password manager so every account gets a unique random password you never memorize.

3. Random Beats Clever

Attackers try "P@ssw0rd2026!" patterns first — substitutions and years add far less strength than they appear to. Cryptographic randomness has no pattern to exploit.