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🔑 Password Generator — Strong & Secure, No Upload

This free password generator creates cryptographically secure random passwords entirely in your browser — no data is ever uploaded, no account required, and it works fully offline.

A password generator creates strong, random passwords from letters, numbers and symbols that are far harder to guess or crack than ones you make up.

Length: 16
Strength

Private by design. This tool runs entirely in your browser — nothing you enter is uploaded or stored, and it works offline.

About

The generator uses the browser's built-in `crypto.getRandomValues()` API — the same standard used by security software — so every password is truly random and unguessable. You can set length from 6 to 64 characters, mix uppercase, lowercase, digits, and symbols, and exclude visually ambiguous characters like O, 0, l, and 1. A real-time strength meter shows how secure your password is. Because everything runs client-side, your passwords never leave your device — making this tool safe to use even on sensitive accounts.

How to use

  1. Open the tool — a secure password is generated automatically on load.
  2. Drag the length slider to set how many characters you need (6–64).
  3. Check or uncheck character types — uppercase, lowercase, digits, symbols — and toggle 'Exclude ambiguous characters' if needed.
  4. Check the strength meter and click Regenerate until you're satisfied.
  5. Click Copy to copy the password to your clipboard instantly.

FAQ

Is this password generator free?
Yes, completely free with no account or subscription required.
Do you upload or store my generated passwords?
No. Passwords are generated entirely in your browser using JavaScript and are never sent to any server. Your data stays on your device.
Does the password generator work offline?
Yes. Once the page is loaded, you can disconnect from the internet and the tool continues to work perfectly.
How random and secure are the generated passwords?
The tool uses `crypto.getRandomValues()`, a cryptographically secure pseudorandom number generator (CSPRNG) built into all modern browsers — the same standard used in security software and password managers.
What does 'Exclude ambiguous characters' do?
It removes characters that look similar in many fonts — O and 0, l and 1, I — so you can type the password manually without confusion.
Does every password actually contain the character types I ticked?
Yes. The generator first draws one character from each set you enabled, fills the remaining length from the combined pool, then shuffles the whole string. So a password with all four types ticked is guaranteed to hold at least one uppercase letter, one lowercase letter, one digit and one symbol - which matters because some sites reject a password that happens to miss a required type.
Which symbols are used, and are they affected by the ambiguous-character option?
The symbol set is !@#$%^&*()_+-=[]{}|;:,./ - twenty-four characters that are typeable on most keyboard layouts. "Exclude ambiguous characters" filters only letters and digits (O, 0, l, 1, I); symbols are never removed, because none of them are easily confused with one another.
Are some characters more likely to appear than others?
No. Taking a random 32-bit number modulo the pool size would make the first few characters slightly more likely - a subtle bias that many online generators carry. This generator discards and redraws any value that falls in that uneven tail, so every character in the pool has exactly the same probability.

Read the guide