This tool generates secure, strong, and random passwords. For added security, passwords are created entirely within the webpage and are never transmitted over the Internet. A password is generally a string of characters—including letters, numbers, and symbols—used to access accounts and prevent unauthorized entry. In today’s digital world, most people regularly use passwords for various accounts. Therefore, it is essential to understand how to create strong passwords (or use a generator) and how to properly protect them.
- Set length: Choose between 4 and 128 characters.
- Pick options: Select which character types to include and which to exclude.
- Generate: Click GENERATE to create a cryptographically random password.
- Copy: Click COPY to copy the password to your clipboard.
Password Strength
Password strength measures how resistant a password is to guessing or brute-force attacks, typically estimated by the number of attempts needed to crack it. It depends on length, complexity, and unpredictability. Passwords using easily found personal details, like names or birthdays, are usually weak.
Security measures beyond the password also reduce risk, including safeguards like two-factor authentication and temporary account lockouts after repeated failed attempts.
How to Create a Secure Password
Creating a secure password involves both strong construction and good habits, such as regular updates and avoiding common choices (e.g., “password,” “123456,” “qwerty”). Key guidelines include:
- Use lowercase letters [a–z]
- Use uppercase letters [A–Z]
- Include numbers [0–9]
- Include symbols [!@#$%^&*()…]
- Avoid personal information
- Avoid blacklist words
- Avoid company or institution names
- Avoid predictable formats (dates, phone numbers, etc.)
Most policies also require a minimum length, as longer, more varied passwords are generally stronger.
The generator can exclude ambiguous characters like “L,” “I,” and “1,” which may be visually confusing. While this improves usability, it can slightly reduce strength.
Password Entropy
Entropy, measured in bits, indicates how difficult a password is to guess. Higher entropy means greater security. For example, a 100-bit password could require up to 2100 attempts in a brute-force attack, with about half needed on average.
How to Protect Your Password
Protecting your password is as important as creating it. Best practices include:
- Do not share your password
- Avoid reusing passwords across accounts
- Change passwords regularly
- Avoid saving passwords on public devices or networks
- Do not store passwords in obvious or accessible places
Following these steps helps reduce the risk of unauthorized access and keeps your accounts secure.