How to generate a strong password
- Set the length with the slider. 16 characters or more is a good choice for important accounts.
- Choose which characters to include: uppercase, lowercase, numbers and symbols.
- Turn on Exclude look-alikes if you'll ever need to read or type the password by hand.
- Tap Copy and paste it into the sign-up or change-password form, then save it in your password manager.
A new password is generated every time you change a setting or tap New password.
What makes a password strong?
A password's strength comes from how many possible combinations an attacker would have to try. That depends on two things: the length, and how many different characters could appear in each position. The strength bar shows this as bits of entropy:
| Entropy | Strength | Example |
|---|---|---|
| Under 40 bits | Weak | 8 lowercase letters |
| 40–60 bits | Fair | 10 letters and numbers |
| 60–80 bits | Strong | 12 characters, all types |
| 80+ bits | Very strong | 16+ characters, all types |
Length helps more than anything else. Adding four random characters does more for security than swapping letters for symbols in a short, memorable word.
How this generator keeps passwords private
Passwords are created with your browser's cryptographically secure random number generator, the same kind used for encryption. Each character is chosen without bias, and the password never leaves your device: nothing is sent to a server, logged or stored. You can even load the page, switch off your connection and keep generating.
Good password habits
- Use a different password for every account. If one site is breached, the others stay safe.
- Use a password manager. Android, Chrome and dedicated apps can store and fill strong passwords, so you don't need to remember them.
- Turn on two-factor authentication for email, banking and social accounts. It protects you even if a password leaks.
- Never share passwords in chats or email. If you need to share Wi-Fi access, a Wi-Fi QR code is safer and easier.
If you download apps from outside Google Play, also check the files with our APK hash checker before installing.