Password Generator
Generate strong random passwords.
The Password Generator creates cryptographically secure, random passwords tailored to your requirements. Choose password length (8–64 characters), and include or exclude uppercase letters, lowercase letters, numbers, and special characters. All generation happens entirely in your browser using the Web Crypto API — your passwords are never sent to any server, never logged, and never stored. Use the copy button to copy instantly. For maximum security, pair generated passwords with a reputable password manager rather than memorizing them or writing them down.
Password Generator
Examples
16-Character High-Security Password
Generate a 16-character password with all character types enabled.
→ e.g., K#9mP$xL2wR@nQ7! (example only — each generation is unique)
12-Character Alphanumeric (No Symbols)
For sites that don't accept special characters.
→ e.g., xK7mRp2nL9qB
24-Character Master Password
Extra-long password for a password manager or critical account.
→ e.g., J#8kM$2vP@xR5nW!qL7cZ&9s
Tips
- ✓Never reuse passwords across accounts — one breach exposes all accounts that share it.
- ✓Use a password manager (Bitwarden, 1Password, Apple Keychain) to store generated passwords.
- ✓Enable two-factor authentication (2FA) on every account that supports it.
- ✓For memorizable passwords, consider a passphrase of 4–5 random words: "correct horse battery staple".
- ✓16+ characters is recommended; the difference in crack time between 12 and 16 characters is astronomical.
Frequently Asked Questions
How secure is the generated password?
Passwords are generated using the Web Crypto API's cryptographically secure pseudo-random number generator (CSPRNG). This is the same standard used in security-sensitive applications. Your password is generated locally and never transmitted anywhere.
What password length should I use?
NIST guidelines recommend at least 12–15 characters for general accounts. Use 16+ for email, banking, and work accounts. Use 20+ for master passwords (password manager) and critical infrastructure. Longer is always better when the site allows it.
Should I include special characters?
Yes, when the site allows it. Special characters significantly increase entropy (password strength). A 12-character password with all character types has approximately 79 bits of entropy — considered strong. Without special characters, you need a longer password for equivalent strength.
Is it safe to use an online password generator?
This generator runs entirely in your browser and never sends your password to any server. You can verify this by opening the browser's developer tools and monitoring network requests — none are made during password generation. Disconnect from the internet and it still works.
Should I use a password manager?
Yes. A password manager (Bitwarden, 1Password, KeePass, Apple Keychain) lets you use a unique, strong password for every account without memorizing any of them. This prevents credential stuffing attacks where one breached password unlocks multiple accounts.
What is password entropy?
Entropy measures password randomness in bits — higher bits = harder to crack. An 8-character lowercase password has ~37 bits (crackable quickly). A 16-character password with all character types has ~95 bits (computationally infeasible to crack by brute force).
What makes a password weak?
Weak passwords include: dictionary words, names, birthdays, simple patterns (123456, qwerty), passwords under 12 characters, and reused passwords. Even a long password is weak if it follows a predictable pattern.