Password Strength Meter
Check your password safety rating, entropy strength, and get suggestions to fix security vulnerabilities.
How to use this calculator
👉 Fill in the boxes below and your answer appears instantly — no maths needed, we do it all for you! 🎉
In plain English — what does this do?
💻 A tool for people who build websites and apps. It helps with things like codes, colours, and secret computer languages. If you’re a coder, this will save you a lot of time!
A password strength meter evaluates how safe a string is from automated brute-force hacking attacks. It scores character variety, checks length boundaries, and rates safety.
Security Score
Weak
0
Length
0 bits
Entropy
What is Password Strength Meter?
A password strength meter evaluates how safe a string is from automated brute-force hacking attacks. It scores character variety, checks length boundaries, and rates safety.
How to use it
- 1️⃣ Type a test password into the input field.
- 2️⃣ Review the strength score bar and read helpful safety suggestions.
Formula
💡 See it in action — a real example
❓ Common questions
- Does this site store my passwords?
- Absolutely not. All computations run 100% locally in your web browser. No password data is ever sent to our servers.
- What makes a strong password?
- Length is the most critical factor. Aim for 12 to 16 characters mixing uppercase, lowercase, numbers, and symbols.