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Free Password & Passphrase Generator
Generate strong passwords and passphrases instantly. Bulk output, real-time strength meter, and 100% client-side security your data never leaves your browser.
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No data leaves your device. More length = more entropy.
Frequently Asked Questions About Password & Passphrase Generators
What does this Password & Passphrase Generator do?+
It generates strong, random passwords or passphrases instantly in your browser—using modern JavaScript. Nothing is sent to any server, ensuring full privacy.
How do passphrases differ from passwords?+
Passphrases are combinations of random words (easy to remember, long, and hard to crack) while passwords use a random mix of characters, symbols and digits. Choose whichever fits your use-case and remember—length = strength!
How does the strength meter work?+
It estimates bits of entropy: \(E = L \times \log_2(R)\), where L is length and R is the pool/wordlist size. More bits = higher resistance to guessing.
Is generation private and secure?+
Yes. Everything runs in your browser, using secure randomness (Web Crypto). Nothing is sent to a server—privacy by default.
Do you store or see any generated passwords?+
Never! This generator is 100% local to your browser. Clear the output after copying, and use a password manager for best security.
Can I generate many at once, or change options?+
Yes. Adjust count, modes, separators, or presets—then copy all results instantly!
Are symbols required for security?+
Not strictly! Security is primarily about length and randomness. 4-5 random words, or 14+ random characters (any mix), is very strong.
Should I use a password manager?+
Yes. Password managers prevent reuse, let you store as many unique logins as needed, and help auto-fill for convenience and safety.
What about passkeys and future authentication?+
Where supported, passkeys are modern, phishing-resistant, and very convenient. This generator helps you secure accounts on sites that still require classic passwords.