Password Generator
Generate strong random passwords or memorable passphrases with a strength meter and crack-time estimate.
About Password Generator
This password generator creates strong, random passwords in one click. Set the length, for example 8, 12 or 16 characters, and choose uppercase, lowercase, numbers and symbols. Or switch to passphrase mode for a few random words that are easy to remember yet hard to guess.
A strength meter and crack-time estimate show how secure each password is, and you can generate up to 20 at once and copy the one you like. Passwords are made with your browser's secure random generator and are never stored or sent anywhere. It is free, with no sign-up.
How to use Password Generator
- Choose Password or Passphrase mode.
- Set the length and character types you need.
- Generate one or up to 20 at once.
- Copy the one you like — nothing is stored or sent anywhere.
Frequently asked questions
Are these passwords really random?
Yes. They use crypto.getRandomValues, the browser's cryptographically secure random generator, with unbiased sampling. Nothing is sent to a server.
How long should my password be?
At least 12–16 characters for important accounts. Length matters more than symbols: a 16-character random password has about 100 bits of entropy.
What is a passphrase?
A few random words joined together, like maple-rocket-tulip-harbor. It is easy to remember and type, and 5–6 random words are very strong.
How is crack time estimated?
We assume an offline attacker making 10 billion guesses per second and needing on average half of all combinations. Real risk also depends on how the site stores passwords.
What is a strong password example?
Something like q7#Vm2!pLx9@Rt4z: 16 random characters mixing cases, numbers and symbols. Do not reuse examples you see online; generate your own.
How do I create a 16-character password?
Set the length slider to 16, keep all character types on and click Generate. Copy the result into your password manager.
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