What is Password Generator?
The Password Generator creates strong, random passwords that are virtually impossible to guess or crack. In an age of data breaches, using unique strong passwords for every account is essential.
A strong password should be: at least 12 characters long, include uppercase, lowercase, numbers, and symbols, be unique for each account, and not contain dictionary words or personal information.
Password strength is measured in entropy (bits of randomness). A 16-character password with all character types has about 105 bits of entropy — it would take billions of years to crack with current technology. An 8-character lowercase-only password has 37 bits and can be cracked in minutes.
Use a password manager (Bitwarden, 1Password, LastPass, or the built-in ones in Chrome/Safari) to store your passwords securely. You only need to remember one master password.
Formula
Entropy = Length × log₂(Pool Size)
Pool sizes: Lowercase only: 26 + Uppercase: 52 + Numbers: 62 + Symbols: 85+
Crack time ≈ 2^entropy / guesses per second (assuming 10 billion guesses/sec)
8 chars, lowercase: 26⁸ = 209B → cracked in seconds 12 chars, all types: 85¹² = 1.4×10²³ → millions of years 16 chars, all types: 85¹⁶ = 2.7×10³⁰ → billions of years
How to use this Password Generator?
1. Set password length (16+ recommended). 2. Choose character types to include. 3. Copy the generated password. 4. Change any input to generate a new password.
Tip: Use 16+ characters with all types. If a site doesn't allow symbols, use 20+ characters without symbols.