Securing Email, Banking & Cloud Accounts
Generate unique 20-character high-entropy passwords for your primary email, banking logins, and Apple/Google accounts and save them in Bitwarden, 1Password, or iCloud Keychain.
Password Generator
Generate strong, unpredictable passwords directly on your device using your operating system's hardware-seeded cryptographic random number generator (`window.crypto.getRandomValues()`). Customize character length, toggle uppercase, lowercase, digits, and symbols, exclude ambiguous look-alike characters (`O`/`0`, `l`/`1`), and see live mathematical entropy in bits.
Choose at least one character type
Strength
Very strong
Entropy
103 bits
How to Use the Password Generator
- 1
Adjust the Length slider to choose your password length (16 to 24+ characters is recommended for critical accounts).
- 2
Select which character pools to include: Uppercase (A–Z), Lowercase (a–z), Numbers (0–9), and Symbols (!@#$...).
- 3
Optionally check 'Exclude look-alike characters (O0l1I)' if you ever need to read or type the password on a mobile keypad or TV.
- 4
Verify the live Entropy bits rating, click Generate for a fresh string if desired, and copy it directly into your password manager.
Practical Use Cases
Creating Database Root Passwords & HMAC Signing Secrets
Generate 32-to-64 character alphanumeric secrets for `.env` files, JWT signing keys, PostgreSQL/MySQL credentials, and Redis auth passwords.
Setting Router WPA2/WPA3 WiFi Passwords
Create a strong wireless password with 'Exclude look-alikes' enabled so nobody confuses zero (`0`) and capital `O`, then pair it with our WiFi QR Code Generator.
Password Generator Features
Web Crypto API Hardware Entropy
Powered by `crypto.getRandomValues()` for genuine cryptographic unpredictability.
Live Bit-Entropy Calculator
Displays exact mathematical entropy in bits (`log₂(N^L)`) alongside a clear strength rating.
Ambiguous Character Filter
One-click option to exclude confusing look-alike characters (`0`, `O`, `1`, `l`, `I`).
Runs 100% in your browser
Nothing is uploaded to a remote server, so your data and files stay strictly on your device.
Free and unlimited
No account registration, no watermarks, and no daily usage caps.
Mobile and desktop ready
Responsive layouts and comfortable touch controls that fit phones, tablets, and desktops.
Technical Specifications & Best Practices
- ✓Uses `window.crypto.getRandomValues()` — never `Math.random()` — drawing true cryptographic entropy from your OS kernel.
- ✓Password strength is measured in bits of entropy (`Length × log₂(Pool Size)`): aim for 75+ bits for standard accounts and 100+ bits for financial or admin credentials.
- ✓Check 'Exclude look-alikes' when generating passwords that might be typed manually without copy-paste.
- ✓100% local in-browser generation — no password is ever transmitted over the network, logged, or stored.