PASSWORD GENERATOR
Create unbreakable passwords in seconds
Everything runs locally in your browser. Your data never leaves your device - no uploads, no servers, no data transmission.
All processing happens directly on your machine using JavaScript. Close the tab and all passwords are gone.
Password mode
Generation analytics
Choose mode
Random, Memorable, PIN, or Gamification
Customize
Adjust length, characters, or word count
Copy & use
Instant generation with one-click copy
Why choose this Password generator?
4 modes, entropy meter, Web Crypto API
Cryptographically secure
Uses crypto.getRandomValues() for true randomness. Meets cryptographic standards for maximum security.
Real-time strength meter
Instant password strength analysis with entropy calculation. See exactly how secure your password is.
4 generation modes
Random passwords, Memorable passphrases, PIN codes, and Memory training game.
Easy to remember
Memorable mode creates passphrases like "correct-horse-battery-staple" - secure and memorable.
Memory training
Gamification mode helps you practice and improve password memorization skills.
Strength analysis
Real-time password strength meter with crack time estimation. See exactly how secure your password is.
Frequently Asked Questions
Everything about password security
How secure is this password generator?
All passwords are generated locally in your browser using cryptographically secure random generation (Web Crypto API). Nothing is sent to any server or stored anywhere.
What makes a strong password?
A strong password is at least 12 characters long, includes uppercase and lowercase letters, numbers, and special symbols. Avoid dictionary words and personal information.
How long should my password be?
Minimum 12 characters for basic security, 16+ for important accounts, and 20+ for critical accounts like banking or email. Longer passwords are exponentially harder to crack.
Should I use the same password everywhere?
Never. Use unique passwords for each account. If one service is breached, your other accounts remain safe. Use a password manager like Bitwarden, 1Password, or KeePass to store them securely.
How often should I change my passwords?
Critical accounts (email, banking): Every 90-180 days. Important accounts: Every 6 months. Less critical: Yearly. Always change immediately if a service is breached or you suspect compromise. Check Have I Been Pwned to see if your accounts were compromised. Regular rotation adds an extra security layer even with strong passwords.
Can I generate easy-to-remember passphrases?
Yes! Switch to Memorable mode to generate passphrases like "correct-horse-battery-staple". You can customize word count (3-20 words), separators, capitalization, and add numbers. These are much easier to remember than random characters while remaining highly secure.
What is Gamification mode?
Gamification mode is a fun memory training game that helps you practice remembering passwords. Choose Practice Mode for random passwords or Custom Mode to train with your own password. Track your best score and current streak. It's a great way to improve your password memorization skills!
Is my generated password stored anywhere?
No. Passwords are generated locally in your browser and never transmitted or stored. Only basic usage statistics (like generation count) are saved locally. Your actual passwords are never saved unless you explicitly use the Memory mode for practice.
Technical Details
Under the hood of Password Generator
Cryptographic Engine
Passwords are generated using the Web Crypto API (crypto.getRandomValues) - the same CSPRNG that powers TLS handshakes. Each character is selected from a uniform distribution across the chosen character set via rejection sampling. Random mode uses no Math.random().
Zero-Transmission Policy
All generation runs in an isolated browser context. No passwords are transmitted to any server - no external requests, no analytics on your content, no server-side logs. Close the tab and the generated password exists only in your clipboard or memory.
Entropy Calculation
Strength is measured in bits of entropy: log2(charset_size^length). A 16-character password with uppercase, lowercase, digits, and symbols yields ~105 bits - exceeding NIST SP 800-63B recommendations. Crack time estimates assume 10 billion guesses per second.
Performance
Instant generation for standard passwords. A curated wordlist (100+ entries) for Memorable mode is embedded client-side - no network requests during passphrase generation. Fisher-Yates shuffle ensures unbiased character ordering.