01 / Fast steps
- Type a password.
- Read the strength score and suggestions instantly, updated as you type.
Password Strength Checker
Type a password to instantly see how strong it is and get specific suggestions to make it stronger.
Updates instantly as you type
02 / Best for
- Checking a new password before saving it to an account.
- Learning what makes a password weak or strong.
- Testing password policy rules during development.
03 / Why here
- Runs entirely in your browser, the password is never sent anywhere.
- Checks length, character variety and common weak patterns.
- Gives specific, actionable suggestions rather than just a score.
04 / Keep in mind
- This checks the password itself, not whether it has appeared in a known data breach.
Tool connections
Related tools
01Password GeneratorGenerate strong random passwords locally in the browser.02Credit Card ValidatorCheck whether a card number is structurally valid and identify its network, entirely offline.03IBAN ValidatorCheck whether an IBAN is structurally valid using the standard checksum, entirely offline.04Text EncryptorEncrypt text with a passphrase using AES-GCM, or decrypt it back, entirely in your browser.
Good to know
Questions & answers
01Is my password sent anywhere?
No, the entire check runs locally in your browser. Nothing is transmitted or stored.
02Does this check known data breaches?
No, it only analyzes the password itself (length, character variety, common patterns). It does not check breach databases.
03Is Password Strength Checker free to use?
Yes, Password Strength Checker is completely free, with no sign-up and no usage limits. It runs entirely in your browser, so your data never leaves your device.