Strong Password Generator

What the password generator does

The tool builds passwords from the character types you choose, picking each character with your browser's cryptographic random number generator (crypto.getRandomValues). A strength meter shows how strong the result is, and you can generate several passwords at once to choose from.

Passwords are created only on your device. They are never sent to our server, never stored and never logged.

How to create a strong password

1. Set the length. Choose anything from 8 to 64 characters. Longer is stronger.
2. Choose the character types. Turn uppercase letters, lowercase letters, numbers and symbols on or off to match what a website allows.
3. Exclude look-alike characters if you'll ever read or type the password by hand. This leaves out characters that are easy to confuse, such as I, l, 1, O and 0.
4. Generate several at once if you want a few to choose from.
5. Watch the strength meter. It updates as you change the length and character types.
6. Press Copy and paste the password straight into the sign-up form or your password manager.

Ways to use a random password generator

New accounts

Every time you sign up for something, give it its own fresh password. It takes seconds and keeps one leak from spreading to your other accounts.

Replacing a reused password

If you've used the same password in several places, change the most important accounts first – usually email, banking and anything that can reset your other passwords.

Router and device admin logins

Home routers, printers and smart devices often ship with simple default passwords. Swap them for a long random one and keep a note of it somewhere safe.

Temporary passwords

Setting up an account for a family member or a new colleague? Give them a random starting password and ask them to change it when they first sign in.

Test accounts

Developers and testers often need realistic passwords for test logins. Generate several at once and copy them into your test notes.

Password tips

• Length matters most. Each extra character multiplies the number of possible passwords. A long password with fewer character types often beats a short one that uses them all.
• One account, one password. Reusing a password is the easiest way for one leak to become many.
• Use a password manager. It remembers long random passwords for you, so you only need to remember one strong master password.
• Exclude look-alikes for anything typed by hand, such as a password you read from a sticky note on a new device.
• If a site rejects symbols, turn symbols off and add a few extra characters of length instead.
• Typing it often? A passphrase made of random words is easier to type and remember.