Password Generator
Generate strong, secure passwords instantly. Cryptographically random, customizable length, character types, and entropy strength meter.
💡 Finding This Password Generator Useful?
Get the complete standalone version — 100% offline, no dependencies, works anywhere. Perfect for anyone who needs to generate secure passwords without an internet connection.
🛒 Get the Standalone Version🔍 What Is a Password Generator?
A Password Generator is a tool that creates random, secure passwords using a combination of letters, numbers, and symbols. Strong passwords are essential for protecting your online accounts from unauthorized access. This tool generates cryptographically random passwords using the Web Crypto API — the same technology trusted by banks and security-critical applications.
✨ Key Features
Cryptographically Secure
Uses the Web Crypto API (crypto.getRandomValues()) for true random number generation — not Math.random().
Customizable Length
Choose from 4 to 64 characters using an interactive slider.
Character Type Control
Toggle uppercase, lowercase, numbers, symbols. Exclude ambiguous characters or enable pronounceable mode.
Entropy Strength Meter
Real-time entropy calculation (in bits) with visual strength bar — Weak, Fair, Good, or Strong.
Copy & Copy Raw
Copy password with hyphens, or copy raw without any separators.
100% Private
Everything runs in your browser. Passwords are never transmitted, stored, or logged.
📖 How to Use the Password Generator
- Adjust the password length using the slider — from 4 to 64 characters.
- Select character types — uppercase, lowercase, numbers, symbols. Toggle "Exclude ambiguous" or "Pronounceable mode" for easier reading.
- Click Generate — the password appears instantly with a strength indicator.
- Review the entropy — check the strength bar and entropy bits for cryptographic strength.
- Copy the password to clipboard, or click Regenerate for a different one.
- Clear to remove the current password.
💡 Pro tip: For most accounts, a 16-character password with all character types enabled provides excellent security. For critical accounts (banking, email), use 20+ characters.
🎯 Practical Use Cases
Account Security
Generate unique passwords for every online account — email, banking, social media.
Password Managers
Create strong passwords to store in password managers like Bitwarden, 1Password, or LastPass.
API Keys & Tokens
Generate random strings for API keys, authentication tokens, and secrets.
Testing & Development
Create test passwords for development environments without reusing real credentials.
Client Deliverables
Provide clients with strong, secure passwords for their new accounts.
Learning Security
Understand password strength by experimenting with length and character combinations.
❓ Frequently Asked Questions
A strong password is long (at least 12-16 characters), uses a mix of uppercase, lowercase, numbers, and symbols, and is randomly generated. This tool produces cryptographically random passwords using the Web Crypto API.
Absolutely 100% safe. This tool generates passwords entirely in your browser using the Web Crypto API. No password is ever sent to any server, stored, or shared.
For most accounts, 16 characters with mixed character types provides excellent security. For critical accounts like banking or email, use 20-24 characters.
Regular passwords are completely random for maximum security. Pronounceable passwords alternate consonants and vowels to create strings that are easier to remember.
Completely free, forever. No sign-up, no hidden fees, no usage limits.
👨💻 About the Author — GenieDevs
📦 Get the Standalone Version
🔐 Password Generator – Standalone Edition
Get the complete, self-contained HTML version of this tool. Perfect for offline use, intranet deployments, or embedding in your own projects.