Secure Password Generator — 100% Browser-Based, No Server
Strong passwords & passphrases — instantly, offline, free
Zero server requests during password generation. The Web Crypto API handles all randomness locally in your browser tab. No server logs, no analytics on your passwords, no clipboard sniffing. Works fully offline after the page loads.
Frequently Asked Questions
Is this generator safe to use?
Yes. Generation uses crypto.getRandomValues() only. Verify yourself: open DevTools → Network tab — zero requests are made when generating.
Does it work offline?
Yes. Once the page is loaded, disconnect your internet and continue generating. All logic runs client-side in JavaScript.
Is there a clipboard sniffing risk?
No. CalcNation only writes to clipboard — never reads it. The Clipboard API used here is write-only.
Should I use a password manager instead?
Yes! Use this generator to create a strong password, then immediately save it in Bitwarden, 1Password, or KeePass.
What is the Web Crypto API?
A W3C standard built into all modern browsers that provides cryptographic functions using the OS-level entropy pool — same source as OpenSSL and /dev/urandom.