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✦ Security Tool
FREE PASSWORD STRENGTH CHECKER
Instantly check how strong your password is. Get a score out of 100, estimated crack time, and specific tips to make it stronger. 100% private — never stored.
Need a strong password?
Use our Password Generator to create an uncrackable password instantly.
🔐 Go to Password GeneratorHow Password Strength is Measured
Our password strength checker analyses six key security factors and produces a score from 0 to 100 with an estimated crack time based on modern computing power.
What Makes a Password Weak or Strong?
- Very Weak (0-20): Under 6 characters or single character type. Cracked instantly.
- Weak (21-40): Short or predictable. Cracked in minutes. Change immediately.
- Fair (41-60): Some variety but improvable. Add more length and character types.
- Strong (61-80): Good length with variety. Suitable for most accounts with 2FA.
- Very Strong (81-100): Long, complex, unique. Effectively uncrackable.
Estimated Crack Time Explained
Crack time is calculated assuming 10 billion password guesses per second — the speed of a modern GPU-powered brute force attack. A 16-character mixed password would take billions of years even at this speed.
How to Make Your Password Stronger
- Increase length — every extra character multiplies difficulty exponentially
- Add symbols if you have not already (!@#$%^&*)
- Mix uppercase throughout, not just at the start
- Avoid predictable substitutions like @ for a or 3 for e
- Use a passphrase — four random words are both strong and memorable
Frequently Asked Questions
How does it work?+
It analyses your password across 6 factors: length, uppercase, lowercase, numbers, symbols, and common patterns. Each contributes to a score from 0-100.
Is my password safe to enter here?+
Yes. The checker runs entirely in your browser. Your password is never sent to any server, stored, or logged anywhere.
What makes a password strong?+
At least 12 characters with uppercase, lowercase, numbers, and symbols. Avoid real words, names, or predictable patterns.
What is a good score?+
Aim for Strong or Very Strong. Any password rated Weak or Very Weak should be changed immediately.
How is crack time estimated?+
Based on 10 billion guesses per second — a realistic modern brute force attack speed.