How secure are the generated passwords?

Passwords are generated using window.crypto.getRandomValues() — the browser's cryptographically secure random number generator (CSPRNG), the same technology used by security software and banks. Every character is chosen with true cryptographic randomness, not a predictable pseudo-random sequence. Passwords are never transmitted, logged, or stored anywhere — generation happens entirely inside your browser tab.

What password length should I choose?

16 characters with mixed types (uppercase, lowercase, numbers, symbols) is secure for most online accounts. A 20+ character password is recommended for banking, primary email, and password manager master passwords — these accounts unlock everything else and deserve maximum protection.

Where should I store generated passwords?

Use a dedicated password manager: Bitwarden (free, open source, audited), 1Password, or Dashlane. These tools encrypt your passwords locally before syncing and autofill them in your browser. Never store passwords in plain text files, browser-saved passwords (which can be extracted without your master password), or unencrypted notes apps.

What does Exclude Lookalikes do?

It removes characters that look visually similar in many fonts — specifically: 0 (zero) and O (capital letter), l (lowercase L) and 1 (one) and I (capital i). This is useful when you need to read and type a password manually rather than copy-paste it — for example, a Wi-Fi password you enter on a TV or gaming console.

Should I include symbols in my password?

Yes, if the site allows them. Symbols expand the character set from 62 possible characters (letters + digits) to 92+, which significantly increases entropy. However, some older systems and certain government/banking sites restrict which symbols are permitted. If a generated password is rejected, try regenerating without symbols or with only basic symbols like ! @ # $.

Is a longer password with fewer character types better than a short complex one?

Length wins. A 20-character lowercase password has ~94 bits of entropy; an 8-character fully random password with all character types has ~52 bits. At 94 bits, brute-force cracking is computationally infeasible for the foreseeable future. Aim for 16+ characters with all character types enabled for the best combination of strength and compatibility.

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Password Generator

Generate strong, random and secure passwords in one click. Free, private — passwords never leave your browser.

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Tool

Generated password

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Length: 16 characters

Uppercase (A–Z) Lowercase (a–z) Numbers (0–9) Symbols (!@#$…) Exclude lookalikes (0/O, l/1/I)

What Makes a Password Secure?

Password security depends on two things: length and randomness. Every extra character exponentially increases the combinations an attacker must try.

Length	Character Set	Time to Crack (modern GPU)
8 chars	Lowercase only	Seconds
12 chars	Mixed + numbers	Hours
16 chars	All types	Centuries
20 chars	All types	Practically impossible

Is This Password Generator Safe?

Yes. Passwords are generated using window.crypto.getRandomValues() — the same cryptographically secure RNG used by banks and security software. Nothing is sent to a server; generation happens entirely inside your browser tab.

Password Best Practices

Never reuse passwords. A single breach exposes every account sharing that password. Over 8 billion plaintext passwords are available in breach databases — if you reuse a password, it will eventually be tried.
Use a password manager — Bitwarden (free, open source), 1Password, or Dashlane store and autofill passwords securely. With a manager, every account can have a unique 20+ character random password without memorising anything.
Enable 2FA wherever possible — a stolen password is useless if an attacker also needs your phone. Prefer authenticator apps (Google Authenticator, Authy) over SMS codes, which can be SIM-swapped.
Use 20+ characters for banking, primary email, and password manager master passwords. These accounts unlock everything else — they warrant maximum protection.

Common Password Mistakes to Avoid

Even security-conscious users make these mistakes:

Predictable substitutions — Replacing letters with numbers ("p@ssw0rd", "s3cur1ty") is one of the first patterns attackers try. Modern brute-force tools include common substitution rules.
Dictionary words with a number appended — "Sunshine1", "Dragon99" — these follow patterns that rule-based crackers target first. Random characters are exponentially harder to crack.
Passwords based on personal information — Birthdates, names, pet names, and addresses are guessable from social media. They also appear as likely candidates when attackers target a specific person.
Using the same "base" with site-specific modifications — "MyPassword-Google", "MyPassword-Amazon" — if an attacker gets one, the pattern exposes all the others.
Short passwords, even complex ones — "A3!x" is complex but only 4 characters. Length matters far more than character variety. A 20-character lowercase password has more entropy than an 8-character mixed-case password.

Passphrase vs Random Password

A strong passphrase is a sequence of 4–6 random words: "correct-horse-battery-staple". It can be as secure as a random character password and is easier to type and remember.

A 4-word passphrase from a 2,000-word list has ~44 bits of entropy — similar to a random 8-character mixed password.
A 6-word passphrase has ~66 bits of entropy — similar to a 12-character random password.
Passphrases are better for situations where you must type the password from memory (e.g., device login, password manager master password).
Random character passwords are better for accounts managed by a password manager (copy-paste only, never typed).

Use the random password generator above for accounts stored in your password manager. Reserve memorable passphrases for the few passwords you must actually memorise.