Free Strong Password Generator
Generate strong, random passwords in your browser. Set the length and character types, then copy with one tap.
- Free, no signup
- Generated on your device
- Never stored or sent
How to use Password Generator
- Set the password length with the slider.
- Choose which character types to include.
- Copy the password, or regenerate for a new one.
- Save it in a password manager and use it for one account only.
Features
- Cryptographically secure randomness from the Web Crypto API
- Length from 4 to 128 characters
- Uppercase, lowercase, numbers and symbols
- Option to avoid look-alike characters (I, l, 1, O, 0)
- Live strength estimate in bits of entropy
- Every selected character type is guaranteed to appear
- Nothing is stored, logged or sent anywhere
What can you use Password Generator for?
Reused or predictable passwords are one of the biggest security risks online. This generator creates strong, random passwords locally in your browser using cryptographically secure randomness, with full control over length and character types.
A password generated by a person tends to follow predictable patterns — a real word, a birth year, a familiar substitution — that password-cracking tools are specifically built to test first. This generator instead pulls from the browser's cryptographically secure random number source, so every character is genuinely unpredictable, with no pattern for an attacker to exploit.
- Creating a unique password for a new account instead of reusing one across sites.
- Generating a temporary password to share with a client or teammate that will be changed on first login.
- Setting a long, random passphrase for a password manager's master password.
- Producing a random API key or token placeholder during development.
- Creating a strong Wi-Fi network password — pair it with the QR Generator to share it without reading it aloud.
Tips for better results
- Aim for at least 12–16 characters; length matters more to overall strength than character variety alone.
- Use a unique password per account and store them in a password manager rather than memorizing or reusing them.
- Include all four character types (uppercase, lowercase, numbers, symbols) when a site allows it, for the widest possible character set.
- Turning on two-factor authentication protects an account even if a password is ever exposed elsewhere.
Frequently asked questions
Is the password generator free?
Yes, generating passwords is completely free with no limits.
Are generated passwords stored anywhere?
No. Passwords are generated locally in your browser using secure randomness and are never sent anywhere.
Can I control which characters are used?
Yes, you can choose to include uppercase, lowercase, numbers and symbols.
Is it safe to generate a password for my bank or email in a browser tool?
Yes for this tool specifically, since generation happens locally and nothing is transmitted — but always confirm any password tool works client-side before trusting it with sensitive accounts.
Should I write my generated password down?
A password manager is safer than writing it down, but if you must record it temporarily, avoid storing it in an unencrypted note or file.
How long should my password be?
Use at least 12 to 16 characters for everyday accounts, and longer for your password manager or email. Length adds more strength than complexity rules do.
What does the strength estimate mean?
It shows entropy in bits: length × log2 of the number of possible characters. Each extra bit doubles the number of guesses needed. It assumes the password is fully random, which a password you invent yourself never is.