Online Clipboard: End-to-end encrypted clipboard, shared by a 6-digit code

Hi Product Hunt! I built this because I kept doing the same stupid thing: pasting a password into a chat window to get it onto another machine, and telling myself I'd delete it later. I never did. How it works: you open it on both devices, read the 6-digit code from one screen to the other, approve the request, and whatever you paste on one side is one tap away on the other. iPhone to Windows, Android to Mac - anything with a browser. No shared network, no account, nothing to install. The part I actually care about: every item is encrypted with AES-256-GCM in your browser before it's uploaded. The server stores ciphertext and the key never reaches it. A database dump, a backup snapshot, or a breach six months from now all come up empty. Everything is destroyed 24 hours after the last activity. Two honest limits. It's text only - no files yet. And browser-based E2E has a hard ceiling: a malicious server could serve a backdoored page, and no client-side crypto can prevent that. I wrote both up instead of hiding them: https://clip.nonce.sh/security Would love to hear what breaks.