Password Generator
Generate secure, strong passwords with customizable length, character sets, and security options. Protect your accounts with cryptographically secure passwords.
Generate Secure Password
Customize your password settings and generate secure passwords instantly
Generated Passwords
Password policy reference
Modern guidance (NIST SP 800-63B) favors length over forced complexity. Entropy is what actually stops attackers:
Length vs entropy (full 95-char pool)
| Length | Entropy (bits) | Typical use |
|---|---|---|
| 8 | ~40–52 | Barely acceptable for low-value accounts |
| 12 | ~63–79 | Baseline for everyday accounts |
| 16 | ~84–105 | Recommended for email, banking, password vault |
| 20+ | 105+ | Long-term secrets, master passwords, encryption keys |
Values assume random generation. Human-chosen passwords have far less entropy per character (~2–4 bits) than random ones.
Edge cases worth knowing
- Each +1 character multiplies the search space by the pool size — going from 12 to 16 chars is 30 million times harder to crack.
- Excluding ambiguous characters (0/O, 1/l/I) removes ~8 symbols from the pool — slightly lower entropy, much easier to read aloud or retype.
- A 5-word passphrase you can remember beats a 12-char random string you write on a sticky note.
- Since a manager fills passwords in for you, use the full 95-character pool and 20+ characters — memorization is no longer a constraint.
Frequently Asked Questions
How do I generate a strong password?
Set the length to 16 characters or more, enable every character set — uppercase, lowercase, numbers, and symbols — then click Generate. Check the strength indicator to confirm the result. Everything runs locally in your browser, and passwords are never sent to any server.
How do I generate a 14-character password?
Set the length to exactly 14 and keep all character sets enabled. A 14-character password drawn from the full printable ASCII set carries roughly 92 bits of entropy, far beyond what brute-force attacks can crack. Generate, then copy it straight into your account or password manager.
Is this strong password generator free to use?
Yes — it is completely free, with no registration and no limit on how many passwords you can create. Because generation happens entirely in your browser, there are no accounts to set up and nothing stored on a server.
How long should a randomly generated password be?
Use at least 16 characters for personal accounts and 20 or more for banking or work accounts. Every added character multiplies crack time exponentially, so a 12-character password with mixed symbols can already take centuries to brute force.
Are randomly generated passwords safe to use?
Yes, provided each password is unique per account and generated with at least 12 characters including mixed character types. Reusing one generated password everywhere cancels its strength, so store each one in a password manager instead of a plain text file.
What characters should I include in a strong password?
Combine uppercase and lowercase letters, digits, and symbols like !@#$% to access roughly 95 possible characters per position. Avoid personal details such as birthdays, names, or keyboard patterns like qwerty, and skip spaces if a website forbids them.
How often should I change my generated passwords?
Current NIST guidance says routine changes every 30 or 90 days are unnecessary unless a breach is suspected. Change a password immediately after a data breach, when account sharing ends, or after logging in on an untrusted device.
Can I use generated passwords with a password manager?
Yes, and that is the recommended workflow. Generate a password with 16 to 32 characters, copy it into a new password manager entry, and let the browser extension autofill it later. Managers such as Bitwarden or 1Password also include built-in generators.
Password Security Best Practices
Follow these guidelines to maintain maximum security for your accounts
Use Unique Passwords
Never reuse passwords across multiple accounts. Each account should have its own unique password.
12+ Characters
Use passwords with at least 12 characters. Longer passwords are exponentially harder to crack.
Enable 2FA
Use two-factor authentication whenever available for an additional layer of security.
Use Password Manager
Store passwords securely using a reputable password manager application.
Technical Specifications
Our password generator uses industry-standard security practices
Security Features
- Cryptographically secure randomness
- Client-side generation only
- No password storage or logging
- GDPR and privacy compliant
Customization Options
- Password length: 4-128 characters
- Multiple character sets
- Bulk generation (up to 50)
- Exclude ambiguous characters
References & Resources
-
Password Strength - Wikipedia
In-depth analysis of password security best practices.
-
NIST Password Guidelines (SP 800-63B)
Official NIST guidelines for digital identity and authentication.