Online Password Generator - Create Strong, Secure Passwords
How does the password generator work?
Our online password generator uses the cryptographically secure algorithm crypto.getRandomValues() to create truly random passwords. Unlike simple generators using Math.random(), our tool provides entropy suitable for security purposes. Each password is unique and generated directly in your browser – no data leaves your computer, ensuring absolute privacy protection.
Security First
All generation takes place locally on your device. Passwords are never sent to the server, stored in a database, or shared with third parties. Once you leave the page or refresh the browser, the generated password disappears.
Why do you need a strong password?
In an age where cyberattacks are becoming increasingly sophisticated, a strong password is your first line of defense. Weak passwords like “password123” or “qwerty” can be cracked in a matter of seconds using a brute-force method. A strong password with a combination of different character types significantly increases the time required to crack it – from a few seconds to thousands of years.
Most Common Security Mistakes
- Password Reuse – Using the same password in multiple places means that compromising one account jeopardizes all others
- Dictionary Passwords – Passwords based on common words can be cracked by a dictionary attack
- Personal Information – Names, birth dates, or pet names are easily guessable
- Short Passwords – Passwords shorter than 12 characters are more susceptible to cracking
- Keyboard Patterns – Sequences like “asdfgh” or “147258” are very common
Tips for Secure Passwords
Ideal Password Length
- 8-11 characters – Minimal, suitable only for less important accounts
- 12-15 characters – Recommended length for most accounts
- 16+ characters – Excellent for financial services, emails, and important accounts
- 20+ characters – Maximum security for password managers and sensitive systems
Password Composition
Combine all character types for maximum security:
- Uppercase Letters (A-Z) – Adds 26 possibilities per position
- Lowercase Letters (a-z) – Another 26 possibilities
- Numbers (0-9) – 10 additional possibilities
- Special Characters (!@#$%) – Significantly increases complexity
Password Management
A strong password is useless if you cannot remember it or store it securely:
- Use a password manager – Tools like Bitwarden, 1Password, or KeePass allow you to store hundreds of unique passwords
- Two-Factor Authentication (2FA) – Adds an extra layer of security even if the password is compromised
- Regular Updates – Change passwords every 6-12 months, especially for important accounts
- Unique Password for Each Account – Never recycle passwords across different services
How to Create a Memorable Strong Password?
If you don’t want to use a password manager, there’s the passphrase method:
- Choose 4-5 random words:
Cat-Green-Tree-Fish-64 - Combine them with unusual characters:
Cat!Green@Tree#Fish$64 - Add numbers and modifications:
C@t!Gr33n@Tr33#F1sh$64
Such a phrase is easy to remember but very difficult to crack.
Frequently Asked Questions (FAQ)
Is this password generator really secure?
Yes, all generation occurs locally in your browser using the Web Crypto API. Passwords are never sent to the server.How often should I change my passwords?
For regular accounts, every 6-12 months is sufficient. After any security incident (data breach), change the password immediately.How many characters should a password have?
At least 12 characters. For important accounts, we recommend 16 or more characters.Can I use the same password for multiple accounts?
Never! Each account should have a unique password. Use a password manager to manage them.What if I forget my password?
That's why we recommend password managers. Alternatively, write down passwords on paper and keep them in a safe place (not near the computer).Password Security Statistics
| Password Type | Length | Time to Crack |
|---|---|---|
| password123 | 11 characters | < 1 second |
| qwerty2024 | 10 characters | < 1 second |
| JanNovak85 | 10 characters | 3 hours |
| Abc123!@# | 9 characters | 2 days |
| MyD0g!sF1uffy | 13 characters | 5 years |
| Tr$7mK@p9Lq2 | 12 characters | 200+ years |
| xK9#mP2$vL5@nQ8 | 15 characters | 34 thousand years |
Key Statistics
- 81% of attacks on businesses use stolen or weak passwords
- 59% of people use the same password in multiple places
- 23% of the most common passwords can be cracked in less than 1 second
- The average user has 100+ online accounts requiring passwords
Recommendations for Specific Services
Bank Accounts and Finance
- Minimum 16 characters
- All character types (uppercase, lowercase, numbers, symbols)
- Unique password only for this account
- Activate 2FA (two-factor authentication)
- Change every 6 months
Email Accounts
- Minimum 14 characters
- Email is the key to resetting other passwords
- Use a different password than for other services
- Mandatory 2FA activation
- Regular check of logged-in devices
Social Networks
- Minimum 12 characters
- Protection against phishing and account takeover
- Activate 2FA via app (not SMS)
- Regularly check active sessions
Work Accounts
- According to company standards (usually 14+ characters)
- Never use personal passwords
- Change when leaving the company
- Do not store on work devices
Dangerous Password Practices
Storing passwords in a notepad
❌ Do not store passwords in a passwords.txt file on the desktop
✅ Instead, use an encrypted password manager
Sharing passwords via email or SMS
❌ Never share passwords via unsecured channels
✅ Instead, use secure tools like Bitwarden Send
Browser as a password manager
⚠️ Risky - browsers often don’t use strong encryption
✅ Better is a dedicated password manager with a master password
Writing passwords on paper
⚠️ Acceptable if you keep the paper in a safe or locked drawer
❌ Unacceptable sticking it on the monitor or under the keyboard
Password Strength Testing Tools
After generating a password, you can test its strength at:
- haveibeenpwned.com - Find out if your password has been exposed in a data breach
- password.kaspersky.com - Password cracking time calculator
Warning: Never enter your actual password on unknown websites!
What to do if your password is leaked?
- Immediately change your password on all accounts where you used it
- Activate 2FA wherever possible
- Check account activity and log out unknown devices
- Monitor suspicious activity on bank accounts
- Set up alerts for unusual logins
For Developers and IT Professionals
Security Implementation
This generator uses the following security practices:
// Cryptographically secure random numbers
crypto.getRandomValues(array)
// Not Math.random() – not suitable for security purposes
Technical Specifications
- Entropy Source: Web Crypto API (
crypto.getRandomValues()) - Minimum Entropy: 95 bits for a 16-character password with all types
- Client-side computation: Zero-knowledge architecture
- No telemetry: No tracking or analytics