Password Generator — Create Strong Random Passwords
Generate cryptographically secure random passwords with customizable length and character types. Choose from single or batch generation, with real-time strength analysis. 100% client-side — passwords never leave your browser.
How to Use the Password Generator
- Set the password length using the slider (8-128 characters). Longer is stronger.
- Choose character types — enable uppercase, lowercase, numbers, and symbols as needed.
- Enter the number of passwords you want to generate (1-50).
- Click "Generate" to create cryptographically secure random passwords.
- Copy passwords individually or all at once using the copy buttons.
Why Use This Password Generator
A strong password is your first line of defense against unauthorized access. This generator uses the Web Crypto API (crypto.getRandomValues) to produce truly random passwords — not the predictable pseudo-random values that weaker generators use. Every character is selected from a cryptographically secure random source, making brute-force attacks impractical.
Whether you need a single strong password for a new account or a batch for a security audit, this tool delivers passwords that meet modern security standards. Customize length and character types to match any password policy.
Frequently Asked Questions
For maximum security, use at least 16-20 characters. A 20-character password with mixed character types has enough entropy to withstand even the fastest brute-force attacks for billions of years. For everyday use, 12-16 characters is a good minimum.
Yes. It uses the Web Crypto API's crypto.getRandomValues(), which provides cryptographically secure random numbers backed by the operating system's entropy source. This is the same randomness used in TLS certificates and cryptographic keys.
Yes — including symbols expands the character pool from 62 (letters + digits) to 94+ characters, significantly increasing entropy. However, some older systems may not support all symbols. Stick to common ones like !@#$%^&*() for maximum compatibility.
Use Cases
New Account Registration
Generate a strong unique password every time you create a new online account.
Security Audits
Generate batches of strong passwords for testing password policies and security configurations.
API Key Generation
Create long, random strings for use as API keys, tokens, or secret values.
Master Password Creation
Generate an ultra-strong master password for your password manager.