PASSWORD GENERATOR
Generate strong, random passwords with custom length, character sets, and strength meter. Runs entirely in your browser.
Charset size: 88 characters
// click a button above to generate multiple passwords at once
// FAQ
FREQUENTLY ASKED QUESTIONS
Q1.Are generated passwords saved or logged?
No. Password generation happens entirely in your browser using the Web Crypto API's cryptographically secure random number generator. Nothing is sent to any server, logged, or stored.
Q2.What makes a password strong?
Length and character variety. A 20-character password using uppercase, lowercase, numbers, and symbols has over 130 bits of entropy — effectively uncrackable by brute force. Aim for at least 16 characters with mixed character types.
Q3.What is the 'No Ambiguous' option?
It excludes characters that look similar in many fonts: 0 (zero) and O (letter O), 1 (one) and l (lowercase L) and I (uppercase i). Useful when you need to type or read a password rather than copy/paste it.
Q4.Should I use a password manager?
Yes — always. A password manager lets you use a unique, strong password for every site without memorizing them. Use this generator to create passwords, then store them in a manager like Bitwarden (free), 1Password, or your browser's built-in manager.
Q5.How random are these passwords?
They use window.crypto.getRandomValues() — the same cryptographically secure random number generator used by browsers for TLS/HTTPS. This is significantly more random than Math.random() and suitable for security-sensitive use.
Q6.How long should my password be?
For most accounts, 16–20 characters is considered very strong today. For high-value accounts (email, banking, password manager master password), use 20+ characters. Length matters more than complexity: a 20-character lowercase-only password is harder to brute-force than a 10-character one with symbols. The strength meter on this tool shows entropy in bits — aim for 80+ bits for everyday accounts and 100+ bits for critical ones.
Q7.What is a passphrase and is it better than a random password?
A passphrase is a sequence of random words (e.g., "correct-horse-battery-staple") that is long, memorable, and strong. A 4-word passphrase has roughly 44 bits of entropy; a 6-word passphrase exceeds 77 bits. Random character passwords are harder to crack per character but harder to memorize. For accounts you type manually, a passphrase may be more practical. For accounts stored in a password manager, use a fully random password.
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