yukt.tools
local only

Password Strength Checker

Check entropy, weak patterns, and attack estimates without sending the password anywhere.

Password

live estimate
Local only. Not sent, stored, or returned.
0 checked

Optional terms are checked locally for personalized pattern warnings.

Updates as you type

Strength

waiting for input
Current score
Ready
score
0/4

Enter a password to get a local estimate.

Entropy
0.0 bits
adjusted estimate
Length
0
characters
Fast offline
less than a second
10B guesses/s
Pattern penalty
0.0 bits
none detected

Attack estimates

entropy model
Online throttledless than a second
Offline slow hashless than a second
Offline fast hashless than a second

Character mix

Waiting for input

Pattern warnings

No password entered yet.

Recommendations

  • Enter a password to estimate its local strength.