What is Password Generator?
A Password Generator is a security tool that creates random, complex passwords that are difficult for hackers to guess or crack. In an era of frequent data breaches, using unique and strong passwords for every account is the single most effective security measure a user can take. This tool uses your browser's cryptographically secure pseudo-random number generator (CSPRNG) to assemble passwords containing a mix of uppercase letters, lowercase letters, numbers, and symbols. Unlike human-generated passwords which often follow predictable patterns (like 'Password123'), these machine-generated passwords have high entropy, making them mathematically resilient against brute-force attacks.
Input Formats
- Length (4-128 characters)
- Include Uppercase (A-Z)
- Include Lowercase (a-z)
- Include Numbers (0-9)
- Include Symbols (!@#$)
Output Results
- Secure password string
- Password strength indicator
- Copy-to-clipboard functionality
Key Features
Who is this for?
Account Security
Creating a unique, strong password for a new banking or email account.
Wi-Fi Security
Generating a long, random WPA2 key for a home router to prevent unauthorized access.
API Keys
Developers generating random strings to use as secret keys or tokens.
How to Use
Select the desired password length (recommend 16+).
Check the boxes for character types (Uppercase, Numbers, Symbols).
Click 'Generate' to create a new password.
Click the Copy icon to save it to your password manager.
Examples
Input
Length: 16, All characters selectedOutput
K9#mP2$vL5@nQ8!xCommon Errors
- Generating passwords that are too short (< 12 chars)
- Excluding symbols for critical accounts
- Using the same password for multiple sites
Code Examples
JavaScript (Web Crypto)
const array = new Uint32Array(1);
window.crypto.getRandomValues(array);
console.log(array[0]); // Secure random number