Password Strength Checker
Type a password to see its strength instantly and get simple tips to make it stronger.
What does this Password Strength Checker do?
This tool rates a password while you type it. It scores the password on length and character variety, shows a rating from Very Weak to Very Strong, fills a five-segment color bar, ticks off five requirements, and lists a few short suggestions for making the password stronger. There is no button to press, so every change you make to the password updates the results straight away. The check runs in your browser with JavaScript on the page, and no account is needed.
How to Use This Password Strength Checker?
- Enter the password. Click the Enter Password field and type or paste the password you want to test.
- Watch the rating. The badge next to the word Strength changes from a dash to a rating, and the bar below it fills with colored segments as you type.
- Read the checklist. Five requirements sit under the bar. Each one gets a green tick as soon as your password meets it.
- Follow the suggestions. Short tips appear under the checklist and tell you what to add next, such as a number or a special character.
- Check for typos if needed. Use the eye button inside the field to reveal the password, and click it again to hide the password.
- Keep editing until you are happy. Add or remove characters and the rating, bar, checklist and tips all refresh together.
Built-In Features
Live Strength Rating
The rating updates on every keystroke, paste or deletion. It moves between Very Weak, Weak, Medium, Strong and Very Strong.
Five-Segment Color Bar
One segment lights up per rating level. The two lowest levels are red, Medium is yellow, and the two highest levels are green.
Requirement Checklist
Five checks are tracked: at least 8 characters, an uppercase letter, a lowercase letter, a number and a special character.
Improvement Suggestions
Plain-language tips name the missing piece, and a reminder about longer passwords appears until you reach 14 characters.
Show or Hide Toggle
The password is hidden by default. An eye button inside the field lets you reveal it to spot typos and hide it again.
Browser-Based, No Sign-Up
The check happens in your browser as you type. You do not need to create an account or press a submit button.
How the Strength Score Is Calculated
The tool gives a password up to six points, one for each of the following: 8 or more characters, 14 or more characters, an uppercase letter, a lowercase letter, a number, and a special character. The total decides the rating. Nothing is hidden or weighted in a way you cannot see, so you can work out why a password got its rating.
Six Possible Points
Each of the six checks that your password passes adds one point. Any character that is not a letter or a number counts as special, and that includes spaces. Very short passwords still earn a point for whichever character type they use.
Recalculated on Every Change
The score is worked out again each time the field changes, whether you type, paste or delete. The badge, the bar, the checklist and the suggestions all refresh together, so you can see the effect of each edit right away.
The checklist and the rating are related but not identical. The checklist covers only 8 characters, uppercase, lowercase, number and special character, while the rating also gives an extra point at 14 characters. That is why a long passphrase can reach Very Strong without a single uppercase letter.
What Do the Five Strength Ratings Mean?
Each rating matches a range of points and a bar color. Use the table to see what a password needs in order to move up a level. The example passwords are only there to show how the scoring works, so please do not use them for a real account.
| Points | Rating | Bar | Example |
|---|---|---|---|
| 0 or 1 | Very Weak | 1 red segment | harbor |
| 2 | Weak | 2 red segments | harborlamp |
| 3 | Medium | 3 yellow segments | harborlamp7 |
| 4 | Strong | 4 green segments | Harborlamp7 |
| 5 or 6 | Very Strong | 5 green segments | harbor-lamp-7-fern |
Notice that the last example has no uppercase letter but still reaches Very Strong, because it is long, uses a number and includes special characters. Length combined with variety is what pushes a password to the top of the scale.
How Long Should a Password Be?
Length is the easiest thing to improve, and this checker treats it as two separate milestones. Reaching 8 characters ticks the length requirement. Reaching 14 characters earns an additional point and removes the reminder about longer passwords.
| Password Length | What the Checker Does |
|---|---|
| Under 8 characters | The length requirement stays unticked and a tip asks for more characters |
| 8 to 13 characters | The requirement is ticked and earns one point, but a tip still says longer passwords are stronger |
| 14 or more characters | A second length point is added and the longer-password tip disappears |
Length alone is not enough in this tool. A long password made only of lowercase letters earns points for length and for lowercase, which gives a Medium rating. Adding a number, a special character or capital letters is what lifts it further.
What Makes a Password Strong?
Four habits matter most, and this checker can measure the first two directly. If you would rather not come up with a password yourself, our Password Generator can create a random one that you can then test here.
Enough Length
More characters mean more possible combinations. Aim past the 14 character mark where the checker stops asking for more.
Mixed Character Types
Combining uppercase and lowercase letters, numbers and special characters widens the pool of characters each position can hold.
Hard to Guess
Names, birthdays, pet names, keyboard runs and common words are easy for others to guess. The checker cannot catch these, so this one is up to you.
Used for One Account Only
Even a strong password becomes a serious security risk if you reuse it across multiple websites. When one site is breached, reused passwords can open your other accounts too.
Why Can an Easy Password Still Rate Strong?
Because this checker looks at structure, not meaning. It counts length and character types, and it does not compare your password against lists of common or leaked passwords. It also does not estimate how long a password would take to crack.
A password such as Password1 meets all five requirements and rates Strong, yet it follows a very common pattern. Treat a Strong or Very Strong rating as a check that the basics are covered, and avoid personal details and everyday words even when the bar is fully green.
Common Reasons to Check a Password
Creating a New Account
Test a password idea before you commit to it, so you are not stuck with a weak one the moment you sign up.
Reviewing an Old Habit
If you have used the same style of password for years, run a similar one through the checker to see which requirements it misses.
Trying a Passphrase Idea
Several words joined with numbers or symbols are easy to remember. Check how the rating changes as the phrase gets longer.
Explaining Passwords to Others
The live bar makes it easy to show family, students or coworkers how adding length and variety changes a rating.
Useful Tips
Test a Similar Password
As a general safety habit, try a password with the same length and pattern as your real one instead of typing a live password into any website.
Read the Tips in Order
Up to three suggestions show while the rating is below Strong, and up to two once it reaches Strong. The most basic gaps are listed first.
Start From a Random Password
Random strings avoid the personal patterns people tend to fall back on. Create one with the Password Generator, then see how it rates here.
Reveal It Before Copying
If you plan to reuse a password you typed, use the eye button once to confirm every character is what you meant to enter.
Frequently Asked Questions
How do I check my password strength online?
Type or paste a password into the Enter Password field. The rating, color bar, checklist and suggestions update instantly as you type, with no button to click.
Is this password strength checker free?
Yes. The tool is free to use and does not require an account or sign-up.
Is it safe to type my password into this tool?
The check runs in your browser using JavaScript on the page. As a general safety habit with any online tool, it is still wise to test a password with the same length and pattern as your real one rather than the live password itself.
What do the five strength levels mean?
The levels are Very Weak, Weak, Medium, Strong and Very Strong. They come from a score of up to six points, with one point for each of these: 8 or more characters, 14 or more characters, an uppercase letter, a lowercase letter, a number and a special character.
What do the red, yellow and green colors mean?
Red is shown for Very Weak and Weak, yellow for Medium, and green for Strong and Very Strong. The number of filled segments also grows with each level, from one to five.
How many characters should a strong password have?
This tool ticks the length requirement at 8 characters and gives an extra point at 14 characters. It keeps suggesting a longer password until you reach 14, so aim for at least that length.
Why does my password rate Strong when it feels easy to guess?
The checker measures length and character variety only. It does not compare passwords against common word lists, so a predictable password that meets all the requirements can still rate Strong. Avoid names, dates and everyday words regardless of the rating.
Why does it still suggest a longer password when every box is ticked?
The checklist only asks for 8 characters, but the rating rewards reaching 14. Until your password has 14 or more characters, a reminder that longer passwords are stronger stays in the suggestions.
Do I need an uppercase letter to get Very Strong?
No. A password of 14 or more characters with lowercase letters, a number and a special character earns enough points for Very Strong even without any capitals.
Does this tool estimate how long it would take to crack my password?
No. It gives a rating, a color bar, a requirement checklist and suggestions. It does not show entropy or crack-time estimates.
Does it check whether my password has been leaked in a data breach?
No. The tool does not look up breached or common passwords. It only analyzes the length and character types of what you type.
How can I see what I typed?
Click the eye button on the right side of the password field. It reveals the password so you can check for typos, and clicking it again hides the password.
Does this tool work on mobile devices?
Yes. The layout is responsive, and on small screens the requirement checklist switches to a single column so everything stays readable.