🔐 Security ✅ 100% Free 🛡️ Client-Side Only

Password Generator Online

Generate strong, random, cryptographically secure passwords instantly. Full control over length, character types, and complexity. Your passwords are never stored or transmitted — everything runs in your browser.

Generated Password

Password Strength: —

Password Length

Character Types

Uppercase

A B C D E F

Lowercase

a b c d e f

Numbers

0 1 2 3 4 5

Symbols

! @ # $ % ^

Exclude Similar

0 O l 1 I

Memorable

Word-based

Exclude chars:

🗂 Bulk Password Generator

Click "Generate All" to create multiple passwords at once.

📊 Password Analysis

—

Length

—

Entropy (bits)

—

Char Pool

—

Crack Time

🔍 Check Your Password

Enter a password above

At least 12 characters

Contains uppercase letters

Contains lowercase letters

Contains numbers

Contains symbols

Estimated time to crack

—

🛡️ Security Tips

🔑

Use a password manager like Bitwarden to store unique passwords for every site.

🚫

Never reuse passwords — one breach exposes all accounts that share it.

📏

Longer is stronger — 20 chars is exponentially harder to crack than 8.

📲

Enable 2FA on all important accounts as a second layer of protection.

🔗 Related Tools

What is a Password Generator?

A password generator creates random, cryptographically secure passwords using your device's built-in randomness engine. Unlike passwords humans invent — which follow predictable patterns — a properly generated password uses true randomness, making it virtually impossible to guess or brute-force.

This tool uses window.crypto.getRandomValues() — the same Web Cryptography API used by browsers for SSL/TLS. Everything runs 100% in your browser. No passwords are ever sent to any server, stored in any database, or logged anywhere.

How Strong Does Your Password Need to Be?

Password strength depends on what you're protecting. Here's a practical guide:

Account Type	Recommended Length	Character Types
Social media, forums	12–16 characters	Upper + Lower + Numbers
Email, shopping	16–20 characters	All 4 types
Banking, finance	20–24 characters	All 4 types
Password manager master	24–32 characters	All 4 types
Server / SSH keys	32–64 characters	All 4 types

🔐 Security Best Practices

Use a unique password for every account — a single breach otherwise compromises everything
Store passwords in a reputable password manager like Bitwarden (open source & free) or 1Password
Enable two-factor authentication (2FA) on all critical accounts as a second layer
Never share passwords via email, SMS, or chat — use a secure sharing tool instead
Change passwords immediately if a service you use reports a data breach

Frequently Asked Questions

Absolutely not. All password generation happens locally in your browser using the Web Crypto API. Nothing is transmitted, stored, or logged. Once you close the tab, the password exists nowhere except where you saved it.

Entropy measures how unpredictable a password is. It's calculated as: length × log₂(pool size). A 16-character password using all 4 character types has about 105 bits of entropy — astronomically difficult to brute-force even with supercomputers.

Removes visually ambiguous characters: 0 and O, 1 and l and I. Useful when you need to read or type the password manually, eliminating transcription errors without meaningfully reducing security.

Yes — a memorable password uses randomly selected words joined by hyphens, similar to the "diceware" method. A 4–5 word combination (e.g. "Solar-Tiger-River-42!") is both memorable and highly secure.

Crack time assumes an attacker can attempt 1 trillion (10¹²) guesses per second — roughly the speed of a modern GPU cluster. Total combinations (pool size^length) divided by this rate gives the estimated time.

Copied to clipboard!