Case Converter
Password Generator
Generate genuinely random passwords with your choice of length and characters, powered by your browser's cryptographic randomness. Nothing is generated on, or sent to, any server. No sign-up, free.
How to generate a strong password
Set the recipe
Pick a length and which character sets to include. Longer beats fancier: 20 lowercase characters beat 8 symbols.
Read the strength
The entropy estimate in bits updates live - 80+ bits is safe for anything, 100+ is overkill in a good way.
Copy and store it
Copy the password straight into your password manager. Regenerate for a fresh one anytime.
Password questions, answered
Is the password generated on a server?
No - and for passwords this is non-negotiable. Randomness comes from your browser's crypto.getRandomValues; the password exists only on your screen and clipboard.
How long should a password be?
16+ characters for anything that matters, 20+ for critical accounts. Length adds strength faster than symbol variety.
Why are there no characters like l, 1, O and 0?
Look-alike characters are excluded so a password read from paper or a screen types correctly the first time. The entropy math accounts for it.
What do the bits mean?
Entropy bits measure how many guesses an attacker needs - each bit doubles the work. 80 bits ≈ 10²⁴ guesses, far beyond any realistic cracking rig.