Password Strength Checker

Estimate password entropy and identify common passwords, repeats, and sequences.

Password Strength Checker
Local input
Output
Processing…
About this tool

Made for the task at hand.

Get a transparent heuristic assessment without transmitting the password. The report estimates search-space entropy, then applies penalties for common choices, repeated runs, and predictable keyboard or character sequences.

How to use

  1. Enter a password or a deliberately similar test example.
  2. Review the rating, estimated bits, length, and character pool.
  3. Apply the suggestions and use a unique password manager-generated secret instead.
Your work stays yours.
Tool inputs are processed locally in your browser and are never sent to KitVerse servers. Clear the workspace when using a shared device.
Common questions
Is the entropy score an exact cracking time?

No. It is a heuristic estimate, not a guarantee. Real resistance depends on generation method, attacker knowledge, hashing, rate limits, and available hardware.

Should I paste my real password into websites?

Avoid entering real secrets into unfamiliar sites. This checker runs locally, but using a representative example or a trusted password manager is safer.