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Password Generator & Strength Meter

Q: Are the generated passwords stored or transmitted?

Absolutely not. All password generation happens entirely in your web browser using the Web Crypto API. No passwords are ever sent to our servers, stored in cookies, or logged in any way. You can verify this by using the tool while disconnected from the internet — it works perfectly offline.

Q: How strong is a 16-character password?

A 16-character password using uppercase, lowercase, numbers, and symbols (94 possible characters per position) has 94^16 ≈ 3.7 × 10^31 possible combinations. At 1 trillion guesses per second, it would take approximately 1.17 billion years to brute-force. This exceeds NIST recommendations for most applications.

Q: Should I use a passphrase instead?

Passphrases (like "correct horse battery staple") can be both strong and memorable. A 4-word passphrase from a 7,776-word dictionary has about 50 bits of entropy. Our generator creates high-entropy random strings, which are ideal for use with a password manager. For passwords you need to type from memory, passphrases are a great alternative.

Generate secure passwords with a visual strength meter and one-click copy.

⚙️Settings & Controls

Instant

Quantity to Generate5

Password length16

Uppercase letters (A-Z)Lowercase letters (a-z)Numbers (0-9)Special symbols (!@#$%)

Generated Results0

Click any card to copy

Password Security Best Practices

In 2024, the average person has 100+ online accounts, and password-related breaches remain the #1 attack vector. A strong, unique password for every account is your first line of defense against unauthorized access.

Our generator creates passwords using the Web Crypto API — the same cryptographic foundation used by banks and security software. Your passwords are generated entirely in your browser and are never transmitted or stored.

What Makes a Strong Password?

Length matters most: A 16-character password is exponentially stronger than an 8-character one
Character diversity: Combine uppercase, lowercase, numbers, and symbols
Avoid patterns: "Password123!" is easily cracked despite meeting complexity requirements
Use a password manager: Store generated passwords in tools like 1Password, Bitwarden, or KeePass
Enable 2FA: Passwords alone aren't enough — always enable two-factor authentication

Frequently Asked Questions