TetraKitsPassword Generator
Create cryptographically random passwords with adjustable length, uppercase, lowercase, numbers, and symbols. See strength at a glance, regenerate instantly, and copy — passwords never leave your browser.
Read: Password Generator Guide: Create Strong Passwords Online →
- Free to Use
- No Signup
- Privacy Friendly
How to generate a strong password
- 1
Set password length
Choose length from 8 to 128 characters. At least 12 for most accounts; 16+ for email and banking.
- 2
Select character types
Toggle uppercase, lowercase, numbers, and symbols. More types increase entropy and strength.
- 3
Generate and copy
Click generate for a new password. Copy and paste into your password manager. Need a PIN? Try the random number generator.
Password security tips
Strong passwords combine length with character variety. Each added character exponentially increases the search space for attackers.
- 12+ characters minimum for everyday accounts
- Mix character types — upper, lower, digits, symbols
- Never reuse passwords across sites; use a password manager
Why Use This Tool?
Cryptographically Random
Uses window.crypto.getRandomValues for secure entropy.
Fully Customizable
Set length and choose which character sets to include.
One-Tap Copy
Copy a single password or generate up to ten at once.
100% Private
Passwords are generated locally — never sent to a server.
Frequently Asked Questions
How long should my password be?
At least 12 characters for most accounts. For banking or email, use 16 or more with all character types enabled.
Are generated passwords stored?
No. Passwords exist only in your browser memory until you copy or leave the page.
What does the strength meter measure?
It estimates entropy based on length and character set diversity — longer passwords with mixed types score higher.
Can I exclude ambiguous characters?
Toggle character sets to control output. Regenerate until you get a password that meets your site requirements.
Is this password generator free?
Yes. Unlimited generation with no signup required.
Strong Passwords Without Reusing Old Ones
Credential stuffing attacks exploit reused and weak passwords across sites. A browser generator creates unique, high-entropy passwords with configurable length and character sets — without sending them anywhere.
