Secure Password Generator – Create Strong Random Passwords in 3 Easy Steps
Secure Password Generator
Use this secure password generator to create random passwords instantly to keep your accounts safe.
Click Generate
Use this free secure password generator to create strong, random passwords in one click. Choose a length from short to very long, decide whether to include uppercase letters, lowercase letters, numbers and symbols, and copy the result straight into your account or password manager.
Quick answer
A secure password is long, random and unique to each account. Aim for at least 16 characters that mix uppercase and lowercase letters, numbers and symbols. This generator uses your browser’s cryptographically secure random number source (crypto.getRandomValues), so each password is unpredictable, and nothing you generate is saved or sent anywhere.
Table of Contents
Most account takeovers start with weak or reused passwords. Attackers try leaked passwords from one site on many others, and guess short or predictable ones in seconds. A long random password for every account is the simplest fix.
This secure password generator creates passwords that no human pattern would produce, entirely on your device.
What Makes a Password Secure?
- Length: every extra character multiplies the number of possible combinations. Length matters more than anything else.
- Randomness: no words, names, dates or keyboard patterns like qwerty or 123456.
- Character variety: mixing upper and lower case, digits and symbols enlarges the pool of possible characters.
- Uniqueness: a different password for every account, so one breach does not unlock the rest.
Password Strength by Length
Password strength is often measured in bits of entropy: length × log₂(size of the character set). More bits means more guesses an attacker would need.
| Length | Characters used | Approx. entropy | Rating |
|---|---|---|---|
| 8 | Lowercase only (26) | 38 bits | Weak |
| 8 | Letters + numbers (62) | 48 bits | Weak |
| 12 | Letters + numbers (62) | 71 bits | Fair |
| 12 | All types (about 94) | 79 bits | Good |
| 16 | All types (about 94) | 105 bits | Strong |
| 20 | All types (about 94) | 131 bits | Very strong |
How to Use the Secure Password Generator
Step 1: Choose Length and Character Types
Drag the Password Length slider to the length you want; 16 to 20 characters is a good default. Tick or untick uppercase, lowercase, numbers and symbols. Some websites do not accept symbols, so you can turn them off when needed.
Step 2: Generate a Password
Press Generate Password. A new random password appears in the display box every time you click. With all four options on and a length of 20, you get a password with about 131 bits of entropy.
Step 3: Copy and Save It
Click the copy button next to the password and paste it into the sign-up or change-password form. Save it in a password manager straight away, since you will not be able to see it again after you generate a new one.
Password Security Tips
- Use a password manager to store a different password for every account.
- Turn on two-factor authentication (2FA) for email, banking and social media.
- Never reuse your email password anywhere else, because email resets every other account.
- Change a password immediately if a site you use reports a data breach.
- Do not share passwords by text message or email.
- Consider a passphrase of several random words for passwords you must type often.
Common Password Mistakes
- Adding a single number or "!" to a common word, such as Password1!.
- Using names, birthdays or pet names that can be found on social media.
- Swapping letters for look-alike symbols, like P@ssw0rd, which cracking tools already try.
- Writing passwords on sticky notes near your computer.
Developers who need test logins can pair passwords with profiles from the Fake Identity Generator. To encode data for the web, try the Base58 Encoder.
Frequently Asked Questions
Is this secure password generator safe to use?
Yes. Passwords are created in your browser using the Web Crypto API, and they are never stored or sent to a server.
How long should a strong password be?
At least 16 characters for important accounts. Longer is better, and length adds more strength than complexity.
Should I include symbols?
Yes, when the website allows them. Symbols enlarge the character set, but a longer password without symbols can still be very strong.
How do I remember random passwords?
Use a password manager. It stores and fills your passwords, so you only need to remember one strong master password.
Can I generate passwords without numbers or symbols?
Yes. Untick the character types you do not want before pressing Generate Password.
Is a randomly generated password better than a passphrase?
Both can be strong. A random password packs more strength into fewer characters, while a long passphrase of random words is easier to type and remember.