plaintxt is a no-account, end-to-end encrypted messaging app for temporary conversations. Create a browser-local identity, send encrypted messages, and walk away. No email, no phone number, no password, no tracking, and no ads. Messages are encrypted in your browser before they leave your device. The server stores ciphertext only. Unread messages expire automatically, and read messages burn shortly after being opened. Built for conversations that do not need to live forever.