Free Tool
Password Generator & Strength Checker
Generate cryptographically secure passwords and instantly check their strength with entropy analysis.
Configure Your Password
Password Strength
Entropy
0 bits
Crack Time (offline)
Instant
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How It Works
Set Your Options
Choose your password length and which character types to include.
Generate & Check
Get a cryptographically secure password with instant strength analysis.
Copy & Use
Copy your password to the clipboard and use it right away.
Why Password Security Matters
Weak passwords are the #1 cause of data breaches. Over 80% of hacking-related breaches involve compromised or weak passwords. For businesses, a single compromised password can lead to ransomware, data theft, and regulatory fines.
What Makes a Strong Password?
- Length over complexity: A 16-character password is exponentially harder to crack than an 8-character one
- Mix character types: Uppercase, lowercase, numbers, and symbols increase the character set size
- Avoid patterns: Dictionary words, keyboard patterns (qwerty), and personal info are easily guessed
- Unique per account: Never reuse passwords across services — use a password manager
Password Security for Businesses
Businesses should implement a formal password policy, require multi-factor authentication (MFA), and use enterprise password managers. Regular security awareness training reduces the risk of credential-based attacks by up to 75%.
Frequently Asked Questions
Is this password generator secure?
Yes. Passwords are generated entirely in your browser using the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random numbers. No passwords are sent to or stored on our servers.
How long should my password be?
We recommend at least 16 characters for important accounts. For critical systems (admin accounts, banking), use 20+ characters. Every additional character exponentially increases the time needed to crack the password.
What is password entropy?
Entropy measures the randomness (unpredictability) of a password in bits. It's calculated as log2(charset_size^length). Higher entropy means a stronger password. A good password should have at least 60 bits of entropy.
How is crack time calculated?
We estimate crack time based on an offline brute-force attack at 10 billion guesses per second (a realistic rate for modern GPU clusters). Online attacks are much slower due to rate limiting, making these passwords even more secure in practice.
Should I use a password manager?
Absolutely. Password managers let you use unique, strong passwords for every account without memorizing them. Popular options include 1Password, Bitwarden, and Dashlane. For businesses, they also enable secure password sharing among teams.
Protect Your Business from Cyber Threats
Password policies are just the start. Our cybersecurity services include MFA deployment, security awareness training, and 24/7 threat monitoring.
Explore Cybersecurity Services