Password Strength Checker
Check the length, variety, common patterns, and estimated strength of a password directly in your browser.
Local processingPassword Generator
About this tool
Create a strong random password or a word-based passphrase. Choose the length, uppercase and lowercase letters, numbers, symbols, and whether to exclude characters that are easy to confuse, such as 0, O, 1, and l.
Features
- Cryptographically secure random generation
- Passwords up to 128 characters
- Choose uppercase letters, lowercase letters, numbers, and symbols
- Exclude characters that are easy to confuse
- Create word-based passphrases
How to use
- Set requirements: Pick length, character sets, or passphrase word count.
- Generate: Click Generate for a fresh cryptographically random password.
- Copy immediately: Copy to your password manager—the page does not save it.
Examples
- Create a password for a new online account
- Replace a reused or outdated password
- Create a Wi-Fi password
- Generate a separate password for a database or local service
Limitations
- Generated passwords display once in the page—copy before navigating away
- Passphrase word list is fixed and relatively small
- The results are generated directly in your browser and are not sent to a server.
FAQ
- Is a basic random source used?
- No. All randomness comes from a cryptographically secure source as required for secure generation.
- Are passwords sent to a server?
- Never. Generation and display happen only in your browser tab.
- What does exclude ambiguous do?
- It omits characters like 0, O, 1, l, I that are easy to confuse when reading or typing.
- How do passphrases differ from random passwords?
- Passphrases use several words and are often easier to remember. A sufficiently long randomly generated password usually provides more strength for its length.