Generate strong, secure passwords with customizable options. Includes real-time strength meter, entropy calculation, and passphrase generator mode.
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Generate up to 10 passwords at once
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Generate secure passwords instantly with customizable length (4-128 characters), character types (uppercase, lowercase, numbers, symbols), and strength analysis. Passwords are created using cryptographic randomness. A 16-character password with all character types takes billions of years to crack.
A strong password is at least 12-16 characters long, uses a mix of uppercase, lowercase, numbers, and symbols, avoids common words or patterns, and is unique for each account. Length matters more than complexity.
Entropy measures password randomness in bits. Formula: log2(charset_size^length). A 12-character password using 95 characters has ~79 bits of entropy. 80+ bits is considered strong.
We estimate based on 10 billion password guesses per second (high-end attack). Time = (possible combinations / guesses per second) / 2. The actual time depends on the attacker's resources.
Passphrases (4-6 random words) are easier to remember and can be just as secure as random passwords if long enough. A 5-word passphrase has about 64 bits of entropy, similar to an 11-character random password.
Absolutely! Password managers let you use unique, strong passwords for every account without memorizing them. They're more secure than reusing passwords. Popular options: Bitwarden, 1Password, LastPass.
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