White Noise Alpha Launch: Privacy Group Chats and Anonymous Messaging for Nostr
White Noise, a new privacy-centric messaging app, launched its alpha v0.1.0 in public beta on July 3, 2026. Built on Nostr's Bitcoin-native decentralized identity system (using public/private keys identical to Bitcoin payments) and the Messaging Layer Security (MLS) protocol standardized by the Internet Engineering Task Force (IETF, founded in 1986), White Noise introduces an anonymization protocol to the Nostr social media ecosystem that hides sensitive metadata. Paired with end-to-end encrypted group chats and direct messages (DMs), it promises to take Nostr from an early-adopter, hobbyist technology to a viable alternative in the world of privacy-branded messaging apps like WhatsApp, Signal, or Telegram.
Nostr Protocol and Its Privacy Shortcomings
Nostr, short for "Notes and Other Stuff Transmitted by Relays," is a decentralized, open-source protocol launched in 2021 to enable censorship-resistant communication and social networking. Unlike centralized platforms like Twitter or WhatsApp, Nostr operates on an open network of independent relays — servers that store and forward messages — allowing users to publish posts, send private messages, and share data without depending on a single company. The protocol is cryptographically native: Users authenticate with private keys and public keys that can also be used in Bitcoin for payments and require no identifiable user information to function. While it has gained significant popularity among Bitcoin users, it lacked the right tools for private group chats and anonymized direct messages.
How MLS Encryption Solves the Privacy Problem
"We started this project because we saw no alternatives," Max Hillebrand, founder of White Noise and former contributor to Wasabi Wallet, told Bitcoin Magazine. "Existing encrypted apps fail at scale: Adding 100 people to a group chat slows encryption to a crawl. Decentralized platforms lack private messaging. Meanwhile, Nostr's open relay network lets anyone broadcast ideas, but direct messages remain woefully underprotected. We realized: To protect freedom, we needed to merge these systems." White Noise addresses these problems with MLS, the Messaging Layer Security encryption standard developed by the IETF. Unlike current Nostr DMs and public posts, White Noise's app obfuscates who is sending what to whom, using the mature MLS encryption scheme — similar to the one used by Signal, a popular privacy messaging app. This anonymization prevents metadata leakage that could reveal communication patterns.
Open Source Alpha and Community Feedback
The open source alpha invites audits and feedback from the privacy and Bitcoin community. Users can find details about the app at whitenoise.chat or connect with the team on X (formerly Twitter). The alpha release marks a significant step toward bringing robust privacy features to the Nostr ecosystem, potentially attracting mainstream users who demand encryption and anonymity in their messaging apps.