๐ Password Generator
Generate strong, random passwords with customizable options.
How to Use the Password Generator
Our password generator creates cryptographically secure, random passwords right in your browser. No passwords are ever stored or transmitted โ everything happens locally on your device.
Step 1: Set Your Password Length
Use the slider to choose a password length between 4 and 64 characters. We recommend at least 12โ16 characters for most accounts and 20+ characters for high-security needs like banking, email, and password managers. Longer passwords are exponentially harder to crack.
Step 2: Choose Character Types
Toggle the character types you want included in your password. For maximum security, enable all four types: uppercase letters (AโZ), lowercase letters (aโz), numbers (0โ9), and symbols (!@#$%^&*). Some websites may restrict certain symbols, so adjust accordingly.
Step 3: Generate and Copy
Click "Generate Password" to create a new password instantly. The strength meter shows how secure your password is. Click "Copy" to copy it to your clipboard. Click generate again for a new password if you'd like a different one. The entropy and estimated crack time give you additional insight into password security.
Security Note
This generator uses crypto.getRandomValues(), a cryptographically secure random number generator built into your browser. This is the same level of randomness used by security protocols like TLS/SSL. Your generated passwords never leave your device.
About Password Security
In today's digital world, strong passwords are your first line of defense against unauthorized access to your accounts. Understanding what makes a password strong helps you protect your personal information, finances, and identity online.
What Makes a Password Strong?
A strong password has three key characteristics: length (at least 12 characters), complexity (mix of uppercase, lowercase, numbers, and symbols), and randomness (not based on dictionary words, names, or patterns). Our generator ensures all three by using cryptographic randomness to select characters from your chosen character set.
Understanding Password Entropy
Entropy measures the unpredictability of a password in bits. It's calculated as: logโ(charset_size^length). A password with 80+ bits of entropy is considered very strong. For reference, a 16-character password using all character types (~95 characters) has about 105 bits of entropy โ practically uncrackable by brute force with current technology.
Password Best Practices
Never reuse passwords across different accounts. Use a password manager to store your unique passwords securely. Enable two-factor authentication (2FA) wherever available. Avoid using personal information like birthdays, pet names, or common words. Change passwords immediately if a service reports a data breach.
Frequently Asked Questions
Yes! Our generator uses crypto.getRandomValues(), the same cryptographically secure random number generator used by browsers for TLS/SSL encryption. All password generation happens entirely in your browser โ no passwords are ever sent to any server or stored anywhere.
We recommend at least 12 characters for standard accounts and 16โ20+ characters for high-security accounts (banking, email, password managers). Each additional character exponentially increases the time needed to crack the password through brute force.
Yes, whenever possible. Using uppercase, lowercase, numbers, and symbols maximizes the character set size, dramatically increasing entropy. Some websites restrict certain symbols โ in those cases, compensate by using a longer password with the available character types.
Entropy measures password strength in bits. It's calculated based on the size of the character set and the password length. Higher entropy means more possible combinations and a harder-to-crack password. A 128-bit entropy password would take longer than the age of the universe to brute-force with current technology.
Absolutely. The crypto.getRandomValues() API provides the highest quality randomness available in a browser, suitable for security-critical applications. Combined with appropriate password length (16+ characters) and all character types enabled, passwords generated here are suitable for any account, including banking and enterprise systems.