Random Password Generator

Understanding Password Security

A password is typically a string of characters that may include letters, numbers, and symbols that can be used to access something, typically an account, and prevent others from accessing it. As most of us have countless online accounts today, understanding how to build a strong password is essential.

Password Strength

Password strength measures how effective a password is against guessing or brute-force attacks. Strong passwords are long, unpredictable, and use a mix of characters — avoiding personal data, names, or common words.

How to Create a Secure Password

• Include lower-case letters [a-z]
• Include upper-case letters [A-Z]
• Include numbers [0-9]
• Include symbols [!@#$%^&*()...]
• Avoid personal details and common patterns
• Use at least 12+ characters when possible

Password Entropy

Password entropy measures unpredictability in bits — the higher the entropy, the stronger the password. For example, a password with 100 bits of entropy would take 2¹⁰⁰ attempts to brute-force on average.

Protecting Your Passwords

• Never share your passwords with others.
• Use unique passwords for every account.
• Change passwords regularly, especially after a breach.
• Don’t save passwords on public or shared devices.
• Use a trusted password manager for secure storage.