100% Client-Side Testing

Password Strength

Find out how resilient your password is against brute-force attacks. Everything runs in your browser. We never save what you type.

Safe to test: You can type your real passwords! This tool runs 100% locally on your device. Absolutely nothing is sent to our servers. (Pro tip: You can even turn off your Wi-Fi right now and this tool will still work!)

Strength ScoreAwaiting Input

Estimated Time to Crack

0(standard hacker attack, 10k guesses/sec)
0(by a supercomputer, 10B guesses/sec)

Beyond the Score

A strong password isn't just about random symbols. Master these three golden rules of digital security.

Length Beats Complexity

A 16-character password with just lowercase letters takes longer to crack than an 8-character password packed with symbols. Always prioritize length.

The Power of Passphrases

Instead of 'P@ssw0rd1!', use a phrase like 'BlueTigerRunsAtMidnight'. It's mathematically stronger against brute-force and much easier for you to remember.

Never Recycle

If you use the same strong password everywhere, a single website breach compromises your entire digital identity. Every vault item needs a unique key.

Unpredictability Wins

Avoid patterns, names, or keyboard sequences like 'qwerty' or '1234'. Attackers use smart dictionaries and pattern recognition. True strength comes from randomness, not just length or symbols.

Zero-Knowledge Proof

Wait, did you just save my password?

Absolutely Not.

This strength checker is powered by zxcvbn and runs entirely in your browser. Your keystrokes never leave your device.

No Server Logs

We don't have a database attached to this tool. There is nowhere for your password to be sent.

Try the Offline Test

Don't trust us? Disconnect your device from Wi-Fi right now. This tool will continue to work perfectly.

Common Password Traps

Avoid these predictable patterns at all costs. Hackers use automated dictionaries that check for these exact mistakes first.

The 'L33t Sp34k' Illusion

Bad Example
P@ssw0rd1!

Replacing 'a' with '@' or 's' with '$' doesn't fool anyone anymore. Cracking algorithms test these exact substitutions instantly.

The '123' Fallacy

Bad Example
monkey123!

Adding sequential numbers or an exclamation mark at the end of a weak word does not make it strong. It's the oldest trick in the book.

Personal Breadcrumbs

Bad Example
tommy2015

Pet names, birthdays, anniversaries, or favorite sports teams. If it can be found on your social media, it shouldn't be your password.

The 'QWERTY' Walk

Bad Example
1qaz2wsx3edc

Sliding your fingers across adjacent keys feels random, but cracking software tests physical keyboard layout patterns within milliseconds.

The Lazy Unique

Bad Example
Netflix@Pass

Appending the website's name to a base password is a fatal flaw. If one site is breached, algorithms instantly guess the variations for your other accounts.

Pop Culture References

Bad Example
StarWars2024

Movie characters, song lyrics, or famous quotes. Hackers use 'Culture Dictionaries' that include every popular movie and song title ever made.

Stop Memorizing.

Start Securing.

Creating strong passwords is easy.

Remembering dozens of them each unique, complex, and secure is not.

Let PKey handle the complexity while you enjoy the security.

Browser Sync
Mobile Access
Instant Generation
Zero-Knowledge Storage

No Credit Card Required • Open Source

Back to Home