Free Online Password Generator
Generate secure, random passwords instantly. This tool uses cryptographic randomness (Web Crypto API) to create strong passwords up to 128 characters. 100% browser-based — your password never leaves your device.
All processing happens in your browser. Your passwords NEVER leave your device. We have zero ability to see, store, or access anything you generate here.
Key Facts
- Security: Uses crypto.getRandomValues() for true cryptographic randomness
- Privacy: Zero server transmission — processes locally in your browser
- Length: Supports 8 to 128 character passwords
- Options: Uppercase, lowercase, numbers, symbols — fully customizable
- Cost: 100% free, no registration required, unlimited use
How to Generate a Secure Password
Step 1: Set Your Password Length
Use the slider to select between 8 and 128 characters. For sensitive accounts like banking or email, use 16 or more characters. For general accounts, 12 or more is sufficient.
Step 2: Choose Character Types
Toggle on uppercase (A-Z), lowercase (a-z), numbers (0-9), and symbols (!@#$%). Using all four types maximizes password entropy and resistance to brute-force attacks.
Step 3: Generate and Copy
Click "Generate Password" to create a cryptographically random password using the Web Crypto API (crypto.getRandomValues). Use the copy button to add it to your clipboard.
Step 4: Store Securely
Save your password in a password manager like Bitwarden, 1Password, or KeePass. Never reuse the same password across multiple websites or services.
How Our Password Generator Works
- Cryptographic Randomness: Unlike generators using Math.random() (which is predictable), we use the Web Crypto API providing true randomness from your OS entropy pool
- No Network Requests: Your password is generated in browser memory only. Verify in DevTools Network tab — zero requests during generation
- Memory Cleanup: Sensitive variables are cleared after use. When you close the tab, the password exists nowhere on our end
- Open Standard: Uses the same crypto.getRandomValues() API trusted by banks and security applications worldwide
Frequently Asked Questions
Is this password generator really free?
Yes, 100% free with no limits. No account required, no premium tier, no hidden fees. We are ad-supported, which keeps all tools free forever.
Can you see the passwords I generate?
No, it is technically impossible. Password generation happens entirely in your browser using JavaScript. No data is sent to our servers. You can verify this by checking the Network tab in your browser developer tools while generating passwords.
What makes a password strong?
Password strength depends on length (longer is better), complexity (mix of character types), randomness (no patterns or dictionary words), and uniqueness (never reused). A 16-character password with all character types would take approximately 34,000 years to brute-force with current computing power.
How long would it take to crack my password?
An 8-character lowercase-only password can be cracked in about 2 hours. A 12-character mixed password takes around 200 years. A 16-character password with all character types would take approximately 34,000 years to brute-force. Use our Password Strength Checker for precise estimates.
Should I use a password manager instead?
Yes, password managers like Bitwarden, 1Password, or KeePass are excellent for storing passwords. Use our generator to create strong passwords, then store them in your manager. We complement password managers, not replace them.
Why Password Security Matters
- 81% of data breaches involve weak or stolen passwords (Verizon Data Breach Report 2024)
- 23 million accounts still use "123456" as their password (NCSC Analysis)
- $4.45 million is the average cost of a data breach in 2023 (IBM Security Report)
- 59% of people reuse the same password across multiple sites (Google/Harris Poll 2024)