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Farhan Adil
Farhan Adil

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How I Built a Free Password Strength Checker (No Passwords Ever Leave Your Browser)

Weak passwords are still one of the biggest security risks.
As a small experiment, I built a free password strength checker that runs entirely in the browser.

What makes it different:

No passwords are stored or sent to any server

Uses entropy-based checks, not simple rules

Works offline once loaded

Mobile and desktop friendly

I noticed most tools either feel outdated or push signups.
My goal was to keep it simple, fast, and privacy-first.

👉 Try the tool here:
https://passwordstrengthonline.com/

I am also adding a password generator with customizable length and character sets.

If you are a developer or student, feedback is welcome.
Happy to improve it further.

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