Secure Password Generator

Generate strong, random passwords with customizable options. Everything runs in your browser — no passwords are stored or transmitted.

🔐 Your Generated Password

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Why Strong Passwords Matter

Passwords remain the primary authentication method for most online accounts, making password strength a critical factor in personal cybersecurity. Weak passwords — those that are short, predictable, or reused across multiple sites — are the leading cause of account compromises. According to security research, over 80% of data breaches involve weak or stolen credentials. A strong, unique password for each account is your first and most important line of defense.

Modern password cracking tools can test billions of combinations per second using techniques like brute force, dictionary attacks, and rainbow tables. A simple 8-character password using only lowercase letters can be cracked in seconds, while a 16-character password with mixed character types would take millions of years with current technology. This exponential relationship between password length and cracking time is why security experts consistently recommend longer, more complex passwords.

What Makes a Password Strong?

Password strength depends on two key factors: length and character diversity. Longer passwords are exponentially harder to crack than shorter ones — each additional character multiplies the total number of possible combinations. Using a mix of uppercase letters, lowercase letters, numbers, and special symbols further increases the search space that an attacker must cover. A strong password should be at least 12 characters long (16 or more is recommended), include characters from all four categories, and be randomly generated rather than based on personal information, dictionary words, or predictable patterns.

Password Security Best Practices

Never reuse the same password across multiple accounts. If one service is breached, attackers will try your credentials on other popular sites (a technique called credential stuffing). Use a dedicated password manager like Bitwarden, 1Password, or KeePass to generate and securely store unique passwords for every account. Enable two-factor authentication (2FA) wherever available — even a compromised password cannot be used without the second factor. Finally, be cautious of phishing attempts that try to trick you into entering your password on fake websites.

Frequently Asked Questions

Are the passwords generated here truly random?
Yes. This tool uses the Web Crypto API (crypto.getRandomValues()), which is a cryptographically secure random number generator built into your browser. It produces unpredictable values suitable for security-sensitive applications like password generation.
How long should my password be?
Security experts recommend at least 12 characters, but 16 or more is ideal. Every additional character exponentially increases the time needed for a brute-force attack. For critical accounts like email and banking, consider using 20+ character passwords stored in a password manager.
Are my generated passwords stored anywhere?
No. Passwords are generated entirely in your browser using JavaScript and the Web Crypto API. Nothing is sent to any server, stored in any database, or logged in any way. You can verify this by disconnecting from the internet — the tool still works.
What does "exclude ambiguous characters" mean?
Some characters look very similar in certain fonts: lowercase L (l) vs number 1, uppercase O vs number 0, uppercase I vs lowercase l. Excluding these prevents confusion when you need to read or type the password manually. For passwords stored in a password manager (which auto-fills them), this option is less important.
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