Password Generator
Generate strong and secure random passwords instantly.
Password Generator Use Cases
Frequently Asked Questions
Q. What password length is best?
We recommend at least 16 characters with a mix of types (e.g., K9$mPq7@vL2bN8wR). Complexity increases exponentially with length.
Q. Are passphrases secure?
Yes. Selecting 6 random words from a list of ~7,776 provides about 77 bits of entropy, making them easy to remember and resistant to brute-force.
Q. Does this tool store generated passwords?
No. All generation happens locally via the browser's Web Crypto API. No data is sent to or recorded on our servers.
Q. Are there characters I should avoid?
Some sites may reject symbols like $, &, ', <, > due to escaping issues. You can exclude them in the options if necessary.
Q. Should I change my passwords periodically?
Per NIST guidelines (2017+), it is more important to use strong, unique passwords and 2FA, changing them only if a breach is suspected.
🛡️ Entropy Calculation
| Length | Character Type | Entropy | Time to Crack |
|---|---|---|---|
| 8 chars | Lowercase only | 38 bits | 7 hours |
| 8 chars | Alphanumeric + Special | 53 bits | 9 months |
| 12 chars | Alphanumeric + Special | 79 bits | 1.2x10¹³ years |
| 16 chars | Alphanumeric + Special | 105 bits | 10⁹x age of universe |
| 6 words | Diceware (English) | 77 bits | 3x10¹² years |
🌐 Password Policies by Service
Requirements for major global services.
Symbol: Recommended
2FA: Strongly Recommended
Apple ID
8 chars~-Symbol: Required
2FA: Strongly Recommended
Naver
8 chars~16 charsSymbol: Required
2FA: Recommended
GitHub
15 chars~-Symbol: Recommended
2FA: Required
AWS
8 chars~128 charsSymbol: Recommended
2FA: Strongly Recommended
⚠️ Note for some regions: Many services limit passwords to 16 characters, so 16-character random generation is often the practical best choice.
Key Features
- Secure browser-based offline generation
- Visual password strength indicator
- Custom symbol/number combinations
- Guaranteed high entropy randomness
Generate strong, secure random passwords instantly. 100% local browser processing ensures top-tier security.