Is this password generator truly random?

Yes. It uses window.crypto.getRandomValues(), which is the browser's cryptographically secure pseudo-random number generator (CSPRNG). This is the same source used by security-sensitive browser features like TLS.

Are my generated passwords stored or sent anywhere?

No. All generation runs entirely in your browser using JavaScript. No password is ever transmitted to any server. You can even use this tool offline after the page has loaded.

How long should my password be?

Security experts recommend at least 16 characters for general accounts and 20+ characters for critical accounts like email, banking, or password manager masters. A 20-character password using all four character sets has over 10^38 possible combinations.

What symbols are included in the symbol set?

The symbol set includes: ! @ # $ % ^ & * ( ) _ + - = [ ] { } | ; : , . ? — common characters accepted by most websites while avoiding characters that cause issues in shell scripts or config files.

Can I exclude ambiguous characters like 0, O, l, 1?

Yes. Toggle the "Exclude ambiguous" option to remove characters that look similar (0/O, l/1/I). This is useful when passwords must be typed by hand rather than pasted.

How many passwords can I generate at once?

You can generate between 1 and 20 passwords in a single batch, making it easy to create credentials for multiple accounts without clicking repeatedly.

Random Password Generator

Name: Random Password Generator
Availability: InStock
Author: Nham Vu

Instantly generate cryptographically secure passwords with your choice of length and character sets.

Password Settings

Password Length

4128

Character Sets

Uppercase letters (A–Z) Lowercase letters (a–z) Digits (0–9) Symbols (!@#$%…) Exclude ambiguous chars (0,O,l,1,I)

Number of passwords

Generated Password

Click "Generate Password" to create your secure password

Copied!

Summary

Instantly generate cryptographically secure passwords with your choice of length and character sets.

How it works

Select the desired password length using the slider or input field.
Toggle which character sets to include: uppercase, lowercase, digits, and/or symbols.
Click "Generate Password" or let the tool auto-generate on setting changes.
The password is created using window.crypto.getRandomValues() for cryptographic randomness.
Click "Copy" to copy the password to your clipboard instantly.
Generate as many passwords as you need — each one is unique and secure.

Use cases

Create a strong master password for a password manager.
Generate credentials for new accounts on websites and services.
Produce API keys and secret tokens for development projects.
Create secure Wi-Fi passphrases for home or office networks.
Generate temporary passwords for new user accounts.
Create secure database passwords during server setup.
Produce random passphrases for encrypted archives or vaults.
Replace weak or reused passwords with unique, strong alternatives.

Frequently Asked Questions

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Last updated: 2026-05-28 · Reviewed by Nham Vu