Mission 01 of 05
Beginner
Password Power-Up
Type a password and watch it get scored in real time. Learn why length beats cleverness, what makes a password weak, and how to invent one you can remember.
15 minPassword strengthPassphrasesCracking math
The lock picker
Stays on your deviceUse a made-up password here, never a real one. Nothing on this page is sent anywhere.
Strength
Waiting…
Start typing, or hit “Invent one” for a passphrase you can remember.
0/7 rules
A cracking rig would need???at 10 billion guesses per second
The checklist
- 12 or more characters, not met yet
- Uppercase letter, not met yet
- Lowercase letter, not met yet
- A number, not met yet
- A symbol, not met yet
- Not on the common-password list, not met yet
- No easy patterns, not met yet
Power-ups to try
- 12 or more characters. Length matters more than anything else. Every extra character multiplies the work.
- Uppercase letter. A capital letter widens the alphabet a guesser has to search.
- Lowercase letter. Plain lowercase letters count. You don't need a symbol in every spot.
- A number. A digit adds ten more options for every character position.
The one to remember: a long, simple password beats a short, complicated one, and you can remember it.
Now the important part
A strong password only helps if nobody else knows it. Sharing one with a friend, even your best friend, turns one strong password into two weak ones. Reusing one everywhere means a single leaked site can unlock all the others. Use a different password for every account and let a password manager remember them for you.