Decision instrument

Password Generator

Generate secure, random passwords with custom options

Your inputs

Adjust the fields and review the result in this workbench.

Interpretation

How Password Security works

The Password Generator uses the Web Crypto API to generate cryptographically secure random passwords. It builds a character pool from your selected options and uses random values to pick characters, ensuring true randomness that is safe for security-critical use.

Example

Key features

A realistic example to show how this tool can support an actual decision.

Formula

Entropy = log2(pool_size ^ length). A 16-char password with all types (~94 chars) has ~105 bits of entropy.

  • Cryptographically secure random generation
  • Configurable length from 4 to 128 characters
  • Toggle uppercase, lowercase, numbers, and symbols
  • Generate up to 20 passwords at once
  • Visual password strength indicator
  • One-click copy to clipboard

Avoid mistakes

Common mistakes

A few things that can lead to misleading results or poor decisions.

For maximum security, use passwords of at least 16 characters with all character types enabled. Never reuse passwords across different accounts, and consider using a password manager to keep track of them.

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