Password Generator

Password Generator - Create Strong Random Passwords

A powerful password generator that creates cryptographically secure random passwords. Customize length, character types, and generate multiple passwords at once. Includes password strength meter to ensure your passwords are secure.

What makes a password strong?

A strong password has these characteristics:

Length:
- Minimum 12 characters (16+ recommended)
- Longer = exponentially harder to crack
- Each additional character multiplies possibilities

Complexity:
- Mix of uppercase and lowercase letters
- Include numbers (0-9)
- Include symbols (!@#$%^&*)
- Avoid dictionary words
- Avoid predictable patterns (123, abc, qwerty)

Uniqueness:
- Different password for each account
- Never reuse passwords
- Don't use personal information (name, birthday)

Randomness:
- Truly random, not based on patterns
- Generated by cryptographic random source
- This tool uses crypto.getRandomValues() for true randomness

How long should my password be?

Password length recommendations:

Minimum Security:
- 8 characters - No longer considered secure
- Can be cracked in hours with modern hardware

Basic Security:
- 12 characters - Minimum recommended
- Takes weeks to months to crack
- Acceptable for low-value accounts

Good Security:
- 16 characters - Recommended for most accounts
- Takes years to crack with current technology
- Good for email, banking, work accounts

Excellent Security:
- 20+ characters - Highly secure
- Practically uncrackable with current technology
- Use for critical accounts, encryption keys

Rule of thumb:
- Personal accounts: 12-16 characters
- Work/financial: 16-20 characters
- Critical systems: 20+ characters

With all character types, 16 characters = 95^16 possibilities (enormous)

Should I use symbols in passwords?

Yes, symbols significantly increase password strength:

Without symbols (62 possible characters):
- 8 chars: 62^8 = 218 trillion possibilities
- 12 chars: 62^12 = 3.2 sextillion possibilities

With symbols (95 possible characters):
- 8 chars: 95^8 = 6.6 quadrillion possibilities (30x more)
- 12 chars: 95^12 = 540 sextillion possibilities (169x more)

Benefits:
- Dramatically increases password space
- Harder for brute force attacks
- Meets most password requirements
- Critical for short passwords

Caveats:
- Some systems don't allow all symbols
- Harder to type on mobile
- May need to avoid specific symbols (<>& for some systems)

Recommendation: Always use symbols unless the system doesn't support them. If limited, prioritize length over symbols.

What are ambiguous characters?

Ambiguous characters look similar and can cause confusion:

Commonly confused:
- Zero (0) vs Uppercase O
- Lowercase L (l) vs Uppercase I (I) vs number 1
- Number 5 vs Uppercase S (in some fonts)
- Number 8 vs Uppercase B (in some fonts)

When to exclude ambiguous characters:
- Passwords you need to type manually
- Passwords you'll read over the phone
- Passwords for others to type
- Physical security (written on paper)
- When using certain fonts

When ambiguous is okay:
- Copy-paste only passwords
- Stored in password managers
- Never manually typed
- Maximum security needed (more character types = stronger)

This tool lets you choose. For best security with password managers, include ambiguous characters. For manual typing, exclude them.

How many passwords should I generate?

Depends on your use case:

Single Password (Quantity: 1):
- For immediate use
- One account needs a password
- Quick password reset

Multiple Passwords (Quantity: 5-10):
- Setting up multiple accounts
- Password rotation schedule
- Team account creation
- Choose the strongest from several options

Bulk Generation (Quantity: 20-50):
- User registration systems
- Temporary passwords for many users
- Pre-generating passwords for deployment
- Testing password systems

Best practice:
- Generate 3-5 passwords
- Choose the one that feels most secure
- Each password is cryptographically random
- More options help you find one you're comfortable with

Are these passwords safe to use?

Yes, passwords generated by this tool are cryptographically secure:

Security features:
- Uses crypto.getRandomValues() - browser's cryptographic random
- Not pseudo-random - true random number generation
- No predictable patterns
- Cannot be reproduced
- Each password is unique

Privacy:
- 100% client-side generation
- Never sent to any server
- Not stored or logged anywhere
- No network requests
- Works offline

You can safely use these passwords for:
- Personal accounts
- Work systems
- Banking and financial services
- Encryption keys
- API keys

Best practices after generation:
- Store in password manager (recommended)
- Never reuse across accounts
- Change passwords periodically
- Use 2FA when available

Should I store passwords in a password manager?

Yes! Password managers are essential for security:

Advantages:
- Remember unlimited complex passwords
- Unique password for every account
- Auto-fill (prevents phishing)
- Encrypted storage
- Sync across devices
- Secure password sharing

Popular password managers:
- 1Password
- Bitwarden (open source)
- LastPass
- Dashlane
- KeePass (offline)

With a password manager, you can:
- Use 20+ character passwords
- Include all symbols without worry
- Never reuse passwords
- Change passwords easily
- Focus on one strong master password

Best practice:
1. Use this generator for strong random passwords
2. Store them in a password manager
3. Use 2FA for important accounts
4. Remember only your master password

Don't:
- Write passwords on paper (unless offline storage)
- Save in browser (less secure)
- Email passwords to yourself
- Reuse passwords across accounts

Key Features

• Generate cryptographically secure random passwords
• Customizable password length (4-128 characters)
• Choose character types: uppercase, lowercase, numbers, symbols
• Exclude ambiguous characters option
• Bulk generation (1-50 passwords)
• Password strength indicator
• Copy, download, or open passwords
• 100% client-side - passwords never leave your browser
• Uses crypto.getRandomValues() for true randomness
• No data sent to server
• Works offline
• Dark mode support
• Mobile-friendly