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Password Generator

Generate secure, random passwords with one click — fully customisable

Generated Password

None
Strength0/8 — None
Length
0 chars
Entropy
~103 bits
Charset
88 chars

Quick Presets

Settings

16
4128

Character Types

Uppercase (A-Z)
Lowercase (a-z)
Numbers (0-9)
Symbols (!@#…)

Advanced

Exclude similar (il1Lo0O)
Exclude ambiguous {}[]()/

Free Strong Password Generator — Create Secure Passwords Instantly

Your password is the first line of defence between your personal data and anyone who wants to access it without your permission. Yet most people still use short, predictable passwords — names, birthdays, or simple words — because strong passwords are hard to remember and harder to create manually. That is exactly why this free Password Generator exists. It creates cryptographically random, highly secure passwords in one click, with full control over every aspect of the result.

Adjust the length with the slider (4–128 characters), toggle character types on or off (uppercase, lowercase, numbers, symbols), customise which symbols are included, exclude visually similar characters like the letter l, the number 1, and the capital I (useful when typing passwords manually), and exclude ambiguous symbols that cause problems in some systems. Use the Quick Presets for instant one-click configuration — from a simple 6-digit PIN to a complex 24-character password with all character types enabled.

Every generated password shows a real-time strength score (1-8), a strength bar with colour coding, an estimated entropy in bits (a measure of how hard the password is to crack by brute force), and the effective character set size. The password history panel keeps the last 10 passwords during your session, each with a strength badge and copy button. The Bulk Generate button creates 5 unique passwords simultaneously — useful when you need passwords for multiple accounts at the same time.

What Makes a Password Strong?

Length is the most important factor

Each additional character multiplies the number of possible combinations. A 16-character password is astronomically harder to crack than an 8-character one. Aim for at least 12–16 characters for standard accounts, and 20+ for financial or critical accounts.

Use all character types

Including uppercase, lowercase, numbers, and symbols dramatically expands the character pool. A password using all four from a pool of ~90 characters is much harder to crack by brute force than one using only 26 lowercase letters.

Avoid predictable patterns

Sequences like "123", "abc", or repeating characters like "aaa" give attackers shortcuts. This generator detects and avoids common sequences, scoring your password lower if patterns are present.

Never re-use passwords

When one account is breached, attackers try the same password on other sites. Use a unique, strong password for every account. Use a password manager to store them.

What is entropy?

Password entropy, measured in bits, estimates how difficult a password is to crack. Each bit doubles the number of guesses required. 50 bits is weak for modern hardware. 80+ bits is considered very strong. This tool shows estimated entropy for every password.

Why random matters

Humans are very bad at being random. We unconsciously use patterns, favourite characters, and words we know. This generator uses the browser's cryptographically secure random number generator to ensure genuine randomness.

Frequently Asked Questions

Is this password generator secure?+
Yes. This generator uses the browser's built-in Math.random() (seeded by the OS entropy pool) to produce random passwords. No passwords are stored, logged, or transmitted to any server. All generation happens entirely in your browser.
What is password entropy and why does it matter?+
Entropy (measured in bits) is a mathematical estimate of how hard a password is to crack. Each bit doubles the number of guesses required. 128 bits of entropy means 2^128 possible combinations — beyond the reach of any current or foreseeable computing power.
How long should my password be?+
For most accounts, 12–16 characters is a good minimum. For financial accounts, email (which resets all other passwords), and work accounts, use 20 or more characters. As computing power increases over time, longer is always safer.
Should I use symbols in my password?+
Yes, if the service allows it. Symbols expand the character set from ~62 (letters + numbers) to ~90+ characters. However, if you are typing the password manually, you may prefer to disable ambiguous symbols to avoid confusion.
What is the "Exclude Similar" option?+
It removes characters that look alike: lowercase l, uppercase I, number 1, uppercase L, lowercase o, uppercase O, and number 0. This is useful when you need to type a password manually and want to avoid misreading characters.
Can I use the generated passwords in a password manager?+
Yes, and we strongly recommend it. Copy the generated password and paste it into your password manager (1Password, Bitwarden, Dashlane, LastPass, etc.). There is no need to memorise it.
What are the Quick Presets?+
PIN (6-digit numeric), Basic (12-char letters and numbers), Strong (16-char with symbols), and Complex (24-char with all character types). Clicking a preset instantly configures all settings to match the selected profile.
What is Bulk Generate?+
Clicking Bulk (5) generates five unique passwords at once using your current settings. This is useful when creating accounts on multiple services simultaneously and you want a different strong password for each one.
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