Our free password generator creates strong, random passwords with your choice of length, character types, and complexity options. With a built-in password strength meter and entropy score, you can instantly see how secure your generated password is. All passwords are generated entirely in your browser — nothing is sent to any server.

Weak passwords are one of the leading causes of account breaches and data theft. Using our password generator to create unique, strong passwords for every account — combined with a password manager to store them — is one of the most effective steps you can take to protect your online security.

How to Use the Password Generator

Generating a strong password takes seconds:

1. Set the password length using the slider — 16+ characters is recommended for most accounts.
2. Choose your character types — uppercase, lowercase, numbers, and symbols. More character types equals a stronger password.
3. Optionally enable Exclude Ambiguous Characters to avoid confusing characters like 0, O, l, and 1.
4. Set the quantity to generate multiple passwords at once.
5. Click Generate Password to create your password(s) and see the strength rating.
6. Click Copy First Password to copy it to your clipboard.

When Should You Use a Password Generator?

Use the password generator every time you create a new account or update a password. In particular, use it for high-security accounts such as email, banking, cloud storage, and social media — these accounts are most valuable to attackers and deserve the strongest passwords.

Furthermore, use the password generator when a website forces a password reset, or when you suspect an account may have been compromised. Additionally, IT administrators use it to generate temporary passwords for new employee accounts, ensuring every account starts with a strong, random credential.

Password Security Best Practices

Here are the most important password security practices recommended by cybersecurity experts:

• Use a different password for every account — If one account is breached, a unique password prevents attackers from accessing your other accounts.
• Use a password manager — Tools like Bitwarden (free), 1Password, or Dashlane securely store all your passwords so you only need to remember one master password.
• Enable two-factor authentication (2FA) — Even a strong password can be stolen. 2FA adds a second layer of protection that makes your account significantly harder to compromise.
• Aim for at least 16 characters — Length is the single most important factor in password strength.
• Never reuse passwords — Particularly avoid reusing passwords across email, banking, and social media accounts.

Frequently Asked Questions About the Password Generator

How strong is a random 16-character password?

A random 16-character password using uppercase, lowercase, numbers, and symbols has approximately 95^16 possible combinations — roughly 4.4 × 10^31. Even a computer checking 1 billion passwords per second would take longer than the age of the universe to crack it by brute force.

Are my generated passwords stored anywhere?

No. All password generation happens entirely within your browser using JavaScript. No passwords are transmitted to any server or stored anywhere. Once you close the page, the generated passwords are gone.

What is password entropy?

Password entropy measures the unpredictability of a password in bits. It is calculated as log2(character pool size) × password length. Higher entropy means a stronger password. Security experts generally recommend a minimum entropy of 60–80 bits for general use.

Related Calculators

Furthermore, you might find these related tools useful: Random Number Generator — Subnet Calculator

Disclaimer: Generated passwords are pseudorandom. For maximum security, use this generator alongside a reputable password manager. Passwords are generated entirely in your browser and are never transmitted to any server.