Security & Cryptography

Strong Password Generator

Generate secure, random passwords with custom rules, entropy score, and crack time estimates.

100% In-Browser & Private • Files never leave your device

Strength: EmptyEntropy: 0 bits · Est. crack time: Instant

Password Length:16

6 chars16 (recommended)3264

Uppercase letters (A-Z)Lowercase letters (a-z)Numbers (0-9)Special symbols (!@#$%^&*)Avoid ambiguous chars (0, O, l, 1)

Generate in bulk:

Password generation and hashing are cryptographically secure and 100% in-browser.

Tool guide

How it works

Follow these steps to use Strong Password Generator.

Set your desired password length using the slider (from 6 to 64 chars).

Toggle uppercase, lowercase, numbers, symbols, and avoid ambiguous characters.

Check the live entropy and strength score, then copy your secure password.

Follow these steps to use Strong Password Generator.

File or text

Tool action

Your result