Use slider to select 6-100 character length
🔐 Password Generator
Generate strong passwords and security tokens
Password Strength:Unknown
16
Other Operations
📖 User Guide
Free online password generator - Generate strong passwords and security tokens to protect account security
⚡ Quick Start
New users can start here:
1
Adjust Password Length
2
Select Character Types
Check uppercase, lowercase, numbers, symbols
3
One-Click Generate
Click "Generate" button to get strong password
🔑 Basic Operations
Password Length Setting
- Minimum Length: 6 characters (for simple scenarios)
- Maximum Length: 100 characters (for special security needs)
- Recommended Length: 16-32 characters (balance security and usability)
- 💡 Longer passwords mean higher security, but need proper storage
Character Type Selection
- Uppercase Letters (A-Z): Increase complexity
- Lowercase Letters (a-z): Basic character set
- Numbers (0-9): Strengthen password
- Special Symbols (!@#$%^&*): Maximum security level, some websites may not support
- 💡 Select at least 2 character types for secure password
Password Strength Indicator
- Strength Bar: Real-time display of password strength level
- Color Meaning: Red (weak) → Yellow (medium) → Green (strong)
- Based On: Length + character type diversity + complexity
🚀 Advanced Features
Generate Multiple Passwords
- Click "Generate Multiple Passwords" button
- Generate 10 passwords at once for selection
- Copy individually or all at once
- Suitable for admin creating passwords for multiple users
Copy Function
- Single password: Direct copy generated password
- Multiple passwords: Use "Copy All" to copy all passwords at once
- Auto copy to clipboard, no manual selection needed
🔒 Security Recommendations
Password Security Principles
- Avoid Personal Info: Don't use birthdays, names, phone numbers
- Regular Updates: Change important account passwords regularly (every 90 days recommended)
- Different Passwords per Account: Avoid one password being compromised affecting all accounts
- No Reuse: Don't reuse previous passwords
- Proper Storage: Don't share passwords, don't save plaintext in notes
Privacy Protection
- ✅ This tool completely local, no data upload to server
- ✅ All password generation in browser
- ✅ Passwords auto-clear when page closes
- ⚠️ Browser history may retain generated passwords, recommend clearing
📚 Usage Examples
Simple Password (6-bit)
Length: 6, Characters: Letters + Numbers
Example: Ab3xYz
For low-security scenarios
Standard Password (16-bit)
Length: 16, Characters: All types
Example: K9@mL2$pQx!vRtY4
Suitable for most online accounts
Strong Password (32-bit)
Length: 32, Characters: All types
Example: X7#hK5@mL9$pQ2!vRt4&zB8%cD1*eF3^
For bank, email and critical accounts
Numeric Token (10-bit)
Length: 10, Characters: Numbers only
Example: 4729681305
For short-term verification or PIN
❓ Frequently Asked Questions
Q: How is password strength evaluated?
A: Based on length, character type diversity and complexity. Longer passwords and more character types get higher scores.
Q: Is generated password secure?
A: Yes. Tool uses high-quality random number generation ensuring each password truly random and meets industry security standards.
Q: Will password be saved or uploaded?
A: No. All operations completely local, password never leaves your browser, never saved to any server.
Q: Why some websites don't accept special symbols?
A: Old or specially designed websites may restrict symbols. Try unchecking "special symbols" if needed.
Q: Can I trust this tool?
A: Yes. Tool open source transparent, all code executes in browser, no backend server. Can view code in browser developer tools.
💡 Usage Tips
- Generate different passwords for different scenarios: Critical accounts (bank, email) use long passwords, casual accounts shorter
- Refresh if unsatisfied: Don't like current password, click "Generate" for new one
- Use password manager: After copying password, store in password manager tool (1Password, LastPass)
- Don't reuse: Each generation creates new password, don't reuse previous ones
- Critical accounts careful: Bank, payment accounts use strongest passwords
- Change regularly: Especially critical accounts, recommend changing every 3 months