Password Strength Analyzer
Analyze password strength online. Type a password and see its strength rating (weak, fair, strong or very strong) in real time, along with concrete suggestions such as adding length, uppercase letters, digits or special characters.
FreeOnline Tool
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How to Use
- Type the password you want to check into the input box
- The strength bar, the rating and the percentage score update below in real time
- If the password falls short, specific suggestions are listed, for example to add uppercase letters or special characters
Features
- Rates a password on six criteria: at least 8 characters, at least 12 characters, contains lowercase letters, contains uppercase letters, contains digits, contains special characters
- Converts the score into four levels, weak, fair, strong and very strong, shown on a color-coded progress bar
- Turns each unmet criterion into a concrete improvement suggestion instead of showing a single vague score
- Evaluates as you type, with no button to press
Use Cases
Checking a password before you set it
Test a candidate password while registering an account or changing an existing one, and follow the suggestions to make it safer.
Designing password strength feedback
Use these scoring criteria as a reference when building the strength meter for your own sign-up or password change flow.
Security awareness training
Demonstrate the concrete difference between a weak and a strong password to a team, with a visible score behind it.
Reviewing your existing password habits
Go through the passwords you reuse, check each one and replace the ones that turn out to be too weak.
FAQ
How is the score calculated?
One point is awarded for each of six criteria, out of a maximum of six: length of at least 8 characters, length of at least 12 characters, lowercase letters, uppercase letters, digits and special characters. The total is converted to a percentage and mapped to weak (below 30%), fair (30-60%), strong (60-80%) and very strong (above 80%).
Does it check whether my password appears in a breach database?
No. The rating is based purely on the length and character composition of the password itself. Nothing is checked against an external database of leaked passwords, which requires a dedicated breach lookup service.
Why does a long password still get a low rating?
The score weighs character variety as well as length. A long password made up of only one character type, such as lowercase letters, loses points for the missing variety, so follow the suggestions and add other character types.
Is my password recorded or uploaded?
No. All analysis is computed locally in your browser, and the password you type is never uploaded or logged.