Secure Password Generator & Strength Checker

Protect your online bank accounts, Gmail, and portals with BharatUtility's Secure Password Generator. Uses browser window.crypto for military-grade randomness and calculates entropy bit strength.

Interactive Secure Password Generator & Strength Checker
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Formula & Calculation Methodology

Uses Web Cryptography API (window.crypto.getRandomValues) with Shannon entropy bit metric (H = Length × log2(Pool Size)).

Step-by-Step Worked Example

Length: 16 Characters | Character Pool: 72 (Uppercase, Lowercase, Numbers, Symbols)

  1. Entropy = 16 × log2(72) = 16 × 6.17 = 98.7 Bits
  2. Strength: Very Strong (Takes trillions of years to crack with brute-force)
Result: Generates secure 16+ character password with 98+ bits entropy.

Cryptographically Secure Randomness

Unlike basic generators that use Math.random(), BharatUtility uses Web Crypto API ensuring hardware-backed cryptographically secure pseudo-random number generation (CSPRNG).

Frequently Asked Questions

Are generated passwords saved anywhere?

Never. Passwords are generated exclusively inside your device memory and erased the moment you leave or refresh the page.

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