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Engineering

Strong Password Generator

Generate cryptographic passwords based on your settings and see their combination count.

Password length

Minimum characters

Maximum characters

Alphabet & number requirements

Special characters (symbols) requirements

There are 32 special characters available:
!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~

Condition

Strong Password Generator

Generates a cryptographically secure password based on your settings above.

Strong Password Generator: How Strong Is Your Password?

The most objective way to measure password security is to calculate the number of possible combinations. The larger this number, the longer a brute-force attack would take. This tool uses your password policy parameters to calculate how many unique passwords can be formed at each length.

Alphabet Size and Combination Count

Total combinations = (alphabet size)^(password length). Alphabet size includes: lowercase (26) + uppercase (26, if case sensitive) + digits (10, if enabled) + special characters (0–32, per setting).

AlphabetLength 8Length 12Length 16
Lowercase only (26)~2.1×10¹¹~9.5×10¹⁶~4.4×10²²
+ Uppercase (52)~5.3×10¹³~3.9×10²³~2.8×10³³
+ Digits (62)~2.2×10¹⁴~3.2×10²¹~4.7×10²⁸
+ Special (94)~6.1×10¹⁵~4.8×10²³~3.7×10³¹

Strong Password Tips

  • Use at least 12 characters — length increases combinations exponentially.
  • Mix uppercase, lowercase, digits and special characters.
  • Avoid dictionary words and personal information.
  • Use a different password for each account — a breach shouldn't cascade.
  • Use a password manager to store complex passwords securely.

Frequently Asked Questions

Higher combination counts make passwords more resistant to brute-force attacks. An 8-character lowercase-only password has ~200 billion combinations and can be cracked in seconds, while a 12-character mixed-alphabet password is trillions of times stronger.

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