GUPT (opens in new tab)

Self-hosted, end-to-end encrypted messenger. A privacy-first alternative to Telegram, Signal, WhatsApp & Discord — built on Nostr relays with WebRTC calls. GUPT is a self-hosted, end-to-end encrypted messenger built on Nostr relays. A privacy-first alternative to Telegram, Signal, WhatsApp, and Discord — with direct messages, WebRTC calls, encrypted media, and local-first group state. No servers, no accounts, no phone numbers. Additional information:Developer: besoeasyLicense: CC-BY-NC-4.0Ver...