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Encrypt your messages anywhere on the web with post-quantum cryptography š¦ Quack ā Encrypt the web itself. Want private conversations but can't get everyone to switch to Signal? Quack lets you send encrypted messages on ANY website ā YouTube comments, Twitter DMs, Reddit posts, anywhere you can type. HOW IT WORKS ⢠Type "Quack://" in any text field to open a secure composer ⢠Write your message, hit encrypt, paste the ciphertext ⢠Recipients with Quack automatically see the decrypted message ⢠No one else can read it ā not the platform, not hackers, not anyone WHY QUACK? ā No app switching ā Use the sites you already use ā Quantum-resistant ā ML-KEM-768 + AES-256-GCM cryptography (NIST approved) ā Wallet-grade security ā Master password, auto-lock, encrypted vault ā Stealth mode ā Hide who you're messaging from observers ā Group encryption ā Share keys with trusted contacts ā Zero tracking ā 100% client side PERFECT FOR ⢠Private conversations on public platforms ⢠Sharing sensitive info where others might see ⢠Groups who want secure communication without changing apps ⢠Anyone who values privacy but lives on the open web Your keys never leave your device. Your messages stay yours. Welcome to the encrypted web. Open-source at https://github.com/0xneves/quack
Feb 11, 2026
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