Client-side only · Secure password generation

Secure Password Generator

A secure password generator that runs entirely in your browser. Using crypto.getRandomValues for cryptographically strong randomness, you can generate high-entropy passwords in seconds.

crypto.getRandomValues / Tailwind CSSAll generation happens locally in your browser. Nothing is sent to any server.

Generated password

Adjust the options and length to update the password in real time.

Generate a password to see it here

Strength (entropy)Strong103.4 bits
Length: 16
4–128 characters

Character sets

Improve readability

Generated passwords are only kept in memory and cleared when you reload the page. History is stored only in this tab.

Recent history

Shows up to the last 5 generated passwords. History is cleared when you reload the page.

No history yet. Generate a password and it will appear here.

Security best practices

  • Avoid reusing the same password across multiple services.
  • Use a password manager wherever possible and store long, random passwords instead of trying to memorize them.
  • Enable multi-factor authentication (MFA) to further strengthen your account security.

1. How we handle security

This password generator runs 100% in your browser (client side). Generated passwords are never sent to any external server or stored in any database.

It uses the browser's built-in cryptographically secure pseudo-random number generatorcrypto.getRandomValuesto provide strong randomness suitable for secure password generation.

2. What makes a strong password?

To create a strong password, the following factors are critical:

  • Length: Use at least 12 characters, and preferably 16 or more for high-value accounts.
  • Complexity: Combine uppercase letters, lowercase letters, digits, and symbols to increase the search space and make brute-force attacks significantly harder.
  • Unpredictability: Avoid names, birthdays, common words, or patterns. Random strings without real-world meaning are ideal.

3. How to use this tool effectively

  1. Choose a length: Use the slider or numeric input to set the desired password length based on the security requirements of the service you're using.
  2. Select character options: Decide whether to include uppercase letters, lowercase letters, numbers, and symbols. Turn on "Exclude look-alike characters" to avoid confusing pairs likeland1.
  3. Copy and store safely: Generate a password, then use the "Copy" button to move it to your clipboard and save it in a password manager or secure vault before using it for sign-up or password changes.