TetraKits
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. The TetraKits Password Generator runs entirely in your browser — free, private, and ready on mobile or desktop.
Overview
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.
How to use the password generator
- Set password length — Choose length from 8 to 128 characters. At least 12 for most accounts; 16+ for email and banking.
- Select character types — Toggle uppercase, lowercase, numbers, and symbols. More types increase entropy and strength.
- Generate and copy — Click generate for a new password. Copy and paste into your password manager. Need a PIN? Try the random number generator.
Common use cases
- Set password length: Choose length from 8 to 128 characters.
- Select character types: Toggle uppercase, lowercase, numbers, and symbols.
- Generate and copy: Click generate for a new password.
- Bookmark for quick access: Save the tool for repeat tasks without installing an app.
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.
