Forget the jargon. CyDuck gives everyday users powerful, free tools to stay safe online — all running entirely in your browser.
Your email might already be out there. Floating. Sold. Tried. Let's find out before someone else does.
Hackers don't guess. They buy lists. Check if your password is already on one.
"123456" is not a password. Neither is your dog's name. Let's build something a hacker can't crack in their lifetime.
Memorable. Uncrackable. Yours. Four random words beat twelve random characters — every time. Ducks agree.
How fast could a hacker crack yours? Seconds? Hours? Centuries? Type it in. We'll tell you the uncomfortable truth.
You know what you want to remember. We'll make it impossible to crack. Enter your word — we'll do the rest.
The sacred rules that govern how CyDuck works. Spoiler: we see nothing, store nothing, share nothing.
Most people reuse the same password everywhere — and most of those passwords are dangerously weak. CyDuck was built to fix that without making it complicated. Our tools work entirely in your browser, meaning your passwords and data never travel to any server. We physically cannot see what you generate or type.
Whether you need a quick strong password for a new account, a memorable passphrase for a vault master key, or just want to know if your existing password holds up — CyDuck has you covered, for free, forever.
A strong password combines three things: length (the longer the better), variety (uppercase, lowercase, numbers, symbols), and unpredictability (no dictionary words, names, or patterns). Our generator handles all three automatically using your browser's secure random number generator.
Both have their place. A random character password like xK9#mPqL is hard to remember but efficient for password managers. A passphrase like Silver-Cloud-Rocket-42! is longer, more memorable, and often higher entropy. Use passphrases for things you type manually (like your vault master password) and generated passwords for everything else.
crypto.getRandomValues() — the same cryptographic API used by browsers for TLS and other security-critical operations. It is not the same as Math.random().