Password Generator
A strong password should be at least 12 characters with uppercase, lowercase, numbers, and symbols. Avoid dictionary words and personal info. Use unique passwords for each account. Password entropy measures randomness.
Generate secure random passwords with customizable length and character types. Includes strength indicator and security tips.
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Password Type
Traditional random characters - harder to remember but very secure.
Generated Password
Select at least one character type
Length: 16 characters
464
Character Types
Password Security Tips
- Use at least 12-16 characters for important accounts
- Include a mix of uppercase, lowercase, numbers, and symbols
- Never reuse passwords across different sites
- Consider using a password manager
- Enable two-factor authentication when available
How to Use
- Enter your value in the input field
- Click the Calculate/Convert button
- Copy the result to your clipboard
Frequently Asked Questions
- How long should a secure password be?
- A secure password should be at least 12-16 characters long. Longer passwords are exponentially harder to crack—each additional character multiplies the possible combinations. For sensitive accounts (banking, email), use 16+ characters. Password managers make it easy to use and store long, unique passwords for every account.
- What makes a password strong?
- A strong password has: length (12+ characters), complexity (uppercase, lowercase, numbers, symbols), unpredictability (no dictionary words, names, or patterns), and uniqueness (different for each account). Avoid personal info like birthdays, pet names, or keyboard patterns like "qwerty" or "123456".
- Should I include special characters in my password?
- Yes, including special characters (!@#$%^&*) significantly increases password strength by expanding the character set from 62 (letters + numbers) to 95+ possibilities per character. However, length matters more than complexity—a 16-character password with just letters is stronger than an 8-character password with all character types.
- How often should I change my passwords?
- Current security guidance recommends changing passwords only when there is evidence of compromise, not on a fixed schedule. Frequent mandatory changes often lead to weaker passwords. Instead, use unique passwords for each account, enable two-factor authentication, and change immediately if a service reports a breach.
- Are randomly generated passwords safe?
- Yes, randomly generated passwords are among the safest because they have no patterns, personal information, or dictionary words that attackers can exploit. Use a reputable password generator (like this one) that uses cryptographically secure random number generation. Store generated passwords in a password manager.
- What is password entropy?
- Password entropy measures password strength in bits. Higher entropy = more secure. It's calculated as: log2(possible characters ^ length). For example, an 8-character password using lowercase letters (26 characters) has ~37 bits of entropy. The same length using all character types (95 characters) has ~52 bits. Aim for 60+ bits for important accounts.