Jack Dorsey Unveils "White Noise": A Decentralized Messaging App Built on Nostr and MLS Protocol

• What Is White Noise and How Does It Work?
• How Does White Noise Differ from BitChat?
• Why Is White Noise Considered "Highly Secure"?
• Who’s Behind White Noise?
• Can White Noise Compete with WhatsApp or Signal?
• FAQs

Jack Dorsey, the tech mogul behind Twitter and Square, has launched his second decentralized messaging app,, just days after releasing BitChat in beta. Built on the Nostr protocol and leveraging MLS encryption, WHITE Noise promises unparalleled security, censorship resistance, and multi-device functionality. Unlike BitChat’s Bluetooth mesh network, White Noise operates via a relay-based internet infrastructure, offering a unique blend of privacy and scalability. Backed by OpenSats and the Human Rights Foundation, this open-source project is now available for testing on iOS and Android. Here’s why it might be the next big thing in secure communication.

What Is White Noise and How Does It Work?

White Noise is a decentralized messaging app that combines Nostr’s relay-based architecture with theprotocol. Nostr (short for "Notes and Other Stuff Transmitted by Relays") handles message routing, while MLS ensures end-to-end encryption using a tree-structured key system called "Treekem." This dual-layer approach eliminates single points of failure—no central server means no shutdowns or surveillance. Users can choose between public relays or private, self-hosted options, making it adaptable for both casual users and tech-savvy privacy advocates.

Source: Jack Dorsey via X.

How Does White Noise Differ from BitChat?

While both apps are decentralized, BitChat relies on, enabling offline functionality—ideal for protests or remote areas. White Noise, however, depends on internet-connected relays, trading offline resilience for broader scalability. BitChat’s niche is hyper-local, ad-hoc networks; White Noise aims for global reach with support for group chats of 1,000+ users. Think of it as Signal meets Bitcoin: no middlemen, no metadata leaks, and no corporate overlords.

Why Is White Noise Considered "Highly Secure"?

Three words:,, and. MLS encrypts every message dynamically, so even if a hacker compromises one key, past and future messages remain safe. ISPs see only garbled data—no metadata, no clues. The protocol also future-proofs itself by supporting post-quantum algorithms without app rebuilds. Plus, each device (phone, tablet, etc.) acts as an independent "leaf node," so losing one doesn’t expose your entire chat history. Take that, Pegasus spyware!

Who’s Behind White Noise?

Dorsey’s project is backed by(a nonprofit funding Bitcoin-centric open-source tools) and the, hinting at its ethos: privacy as a human right. The app’s beta is live on Apple TestFlight, Android’s ZapStore, and via direct APK download. Notably, it’saffiliated with Bluesky, Dorsey’s other decentralized social media venture—though both share his anti-censorship vision.