Generates cryptographically strong random passwords with fully customizable length, character sets, and pattern rules. Everything runs locally in your browser — nothing is uploaded.
Generate cryptographically secure random strings with customizable length, count, and character sets (uppercase, lowercase, digits, symbols).
Generates time-based one-time passwords (TOTP) and numeric/alphanumeric OTPs with customizable length and character sets. Everything runs locally in your browser — nothing is uploaded.
Generates random integers or decimals within a user-defined min-max range with optional repetition filtering. Uses the browser random number generator — fine for games, raffles, and sampling, not for security secrets. Everything runs locally in your browser — nothing is uploaded.
Evaluates password strength using zxcvbn entropy analysis: score, crack time estimate, length, character diversity, dictionary words, and pattern repetition.
Generate random coupon/discount codes with customizable pattern using X as placeholder for random characters. Everything runs locally in your browser — nothing is uploaded.
12 characters minimum for everyday accounts (≈79 bits of entropy from a 94-character set); 16+ (≈105 bits) for email, banking, and password-manager master passwords. Every extra character multiplies guessing effort ~94×.
Random strings pack more entropy per character; 5-word passphrases are easier to type and remember. Use random for stored-in-manager logins, passphrases for the few you must memorize.
Uppercase + lowercase + digits + symbols gives the full 94-character set. Some legacy sites reject symbols — the generator lets you exclude them without weakening length, which matters more than variety.
No. One breach exposes the pattern. Generate a unique password per site and store them in a password manager — that is the threat model this tool is built for.
No. Generation uses the browser Web Crypto API locally. Passwords never leave your device and are never logged.
Random String Generator
Generate cryptographically secure random strings with customizable length, count, and character sets (uppercase, lowercase, digits, symbols).
OTP Generator
Generates time-based one-time passwords (TOTP) and numeric/alphanumeric OTPs with customizable length and character sets. Everything runs locally in your browser — nothing is uploaded.