πŸ”’
πŸ“š

Teach Password Security Concepts

Use entropy and crack time estimates to teach students and employees about why certain passwords are weak.

Nid oes angen mewngofnodi

Your password is never sent to any server.

Education tips

πŸ“š

Try "password" vs "P@ssw0rd" vs a random 16-character string. The entropy display shows exactly how much more secure each step is.

πŸ’‘

Entropy is measured in bits. Each additional bit doubles the guesses needed. Going from 40 to 60 bits means 1 millionΓ— more guesses β€” visually powerful.

🧠

The crack time assumes 10 billion guesses per second β€” the speed of modern GPU-based cracking. Even "complex-looking" short passwords fall in seconds.

🚫

Common password attacks don't try all combinations β€” they try dictionary words, common substitutions (@ for a), and known leaked passwords first.

Sut Mae'n Gweithio

1
Ewch i mewn
Enter your data into the tool above. Everything stays local to your browser.
2
Proses
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Lawrlwythwch
Get your result instantly. Nothing is stored after you leave the page β€” complete privacy.

Pam defnyddio ein un ni?

βœ“Hollol rhad ac am ddim - dim costau cudd, byth
βœ“Nid oes angen cyfrif, e-bost na mewngofnodi
βœ“Nid yw ffeiliau byth yn gadael eich dyfais
βœ“Dim cyfyngiadau maint ffeil o gwbl
βœ“Dim dyfrnodau ar unrhyw allbwn

Also check out…

Cwestiynau Cyffredin