Secure Password Generator

Generate cryptographically secure passwords with real-time strength analysis. Client-side only - your passwords never leave your browser.

Web Crypto API
Client-Side Only
Real-time Analysis

Password Generator

Click "Generate Password" to create a secure password
Length: 16
Password Strength Weak
0% 100%
16
4 128

Password Analysis

Security Metrics

Entropy: 0 bits
Charset Size: 0
Combinations: 0
Crack Time: instant

Character Types

Lowercase: No
Uppercase: No
Numbers: No
Symbols: No

Quick Stats

Generated Today: 0
Average Strength: -
Max Entropy: 0 bits

Session History

No passwords generated yet

Why Strong Passwords Matter

🛡️

Defense Against Brute Force

Cybercriminals use powerful computers to guess billions of password combinations per second. A short or simple password can be cracked instantly. Our generator creates high-entropy passwords that would take supercomputers millions of years to crack.

🚫

Prevent Credential Stuffing

Hackers often try username/password pairs from one data breach on other websites (credential stuffing). By generating a unique, random password for every service, you isolate your accounts. If one site is breached, your other accounts remain secure.

🔒

Protect Digital Identity

Your passwords are the keys to your digital life—banking, email, social media, and more. Strong passwords are the first line of defense against identity theft, financial fraud, and privacy invasion.

How RandPassHub Works

Client-Side Cryptography

Unlike many other online tools, RandPassHub.info generates passwords entirely within your web browser using the Web Crypto API. This modern browser standard allows access to your device's cryptographically secure random number generator (CSPRNG).

Zero Knowledge Architecture

"Zero Knowledge" means we know nothing about the passwords you create. Since the generation code runs on your device, your private data never leaves your computer. It is never sent to our servers, never logged, and never stored.

Pseudocode Representation

// Your Browser
const array = new Uint32Array(length);
window.crypto.getRandomValues(array);

// Result
// [392015, 104928, 492015, ...] 
// -> 'K9#m$p2v'

// Server
// (Receives NOTHING)
// (Logs NOTHING)

Frequently Asked Questions

Is it safe to use an online password generator?

Yes, provided it uses client-side generation like RandPassHub.info. Because we use your browser's built-in cryptographic functions, the security is comparable to generating it on your local machine. We do not transmit your passwords over the internet.

What is "Entropy"?

Entropy is a measure of randomness and unpredictability. In passwords, higher entropy means it is harder for a computer to guess. A password like "Password123" has very low entropy, while "K9#m$p2v!9dL" has high entropy. We calculate and display this value in real-time.

Should I use symbols and numbers?

Absolutely. Adding numbers and symbols increases the "search space" for attackers. For example, a standard alphabet has 26 characters. Adding uppercase (26), numbers (10), and symbols (~30) drastically increases the number of possible combinations for each character position.

Do you save my history?

Your "Session History" is stored temporarily in your browser's local memory (localStorage) for your convenience. It is not synced to any cloud and can be cleared instantly with the "Clear All" button. If you clear your browser cache, it disappears.