Cryptographically secure
Uses crypto.getRandomValues() for real randomness, not predictable pseudo-random output.
Why use strong passwords?
Weak passwords are a leading cause of account and system breaches. A strong password mixes uppercase, lowercase, numbers and symbols in a random sequence of at least 12 characters. Human-made passwords tend to follow predictable patterns — a cryptographic generator removes that risk. This tool uses the browser crypto.getRandomValues() API, the same cryptographic foundation used in security protocols.
Generator features
Fully customizable
Choose length (4–128), uppercase, lowercase, numbers, symbols and ambiguous-character exclusion.
Strength meter
A visual bar shows strength (Weak, Fair, Strong, Very strong) based on entropy.
Batch generation
Generate 5 passwords at once to create multiple credentials quickly.
100% in the browser
No data is sent to servers. The password never leaves your device.
Free, no sign-up
Use it as much as you want, with no account and no usage limits.