bitchat is a decentralized peer-to-peer messaging application that operates over bluetooth mesh networks. no internet required, no servers, no phone numbers.
Bitchat – A decentralized messaging app that works over Bluetooth mesh networks | Hacker News
Now add a twist: • Senders pay a small fee to send a message. • Relaying devices earn a micro-payment (could be tokens, sats, etc.) for carrying the message one hop further. • End-to-end encrypted, fully decentralized, optionally anonymous.
Bitchat.land - Decentralized Geohash-Based Chat & Heatmap Platform
Desktop chat client with real-time geohash-based messaging, interactive heatmaps, and decentralized communication.
An exploration of Wi-Fi Aware for Bitchat (and other ad-hoc networks) - HackMD
Bitchat is an open source peer-to-peer mesh communication network started in the summer of 2025 by Jack Dorsey. It's available on iOS, Android, and MacOS. Others have explored beyond this, with a terminal client and a self-powered ESP32-based mesh relay node. In theory, Bitchat enables cross-platform peer-to-peer messaging even when there's no cellular or Wi-Fi network available. In practice, it's not proven to be reliable in an offline environment. However, I believe it could be, and it's clear that the team agrees and is actively working toward that end.
BitChat cache poisoning and replay in Bluetooth mesh
BARGHEST found a cache poisoning attack in BitChat and replay flaw in BLE mesh synchronization that enabled durable network disruption before patching.
Government orders GitHub to remove Bluetooth-based chat app Bitchat: Jack Dorsey | Hacker News
This mouthful boils down to exactly this: a form of communication not controlled by the government creates a risk for the country.
Secure Scuttlebutt
Secure Scuttlebutt (SSB) is a peer-to peer communication protocol, mesh network, and self-hosted social media ecosystem.[3][4] Each user hosts their own content and the content of the peers they follow, which provides fault tolerance and eventual consistency.[5] Messages are digitally signed and added to an append-only list of messages published by an author.[6] SSB is primarily used for implementing distributed social networks, and utilizes cryptography to assure that content remains unforged as it is propagated through the network.[7][8]
Tweets 2 Bsky | BlueAT Network - A Bluesky PDS
BlueAT Network offers a service no other PDS ever has, X Account mirroring.
Beyond Bluesky: These are the apps building social experiences on the AT Protocol | TechCrunch
A list of AT Protocol-based, consumer-facing apps that are either built on top of Bluesky or its underlying protocol, allowing users to take back control over their social networking experiences and personal data.
Nodiux. A lightweight web app to explore Bluesky decentralized conversations and networks
The rise of Bluesky marks a significant shift in the social media landscape — away from centralized control and toward open, federated protocols. Powered by the AT Protocol, Bluesky enables users t…
Beeper — All your chats in one app
Get the most popular messaging services, all in a single app. WhatsApp, Signal, Instagram, Telegram, and more.
7/ Check out the details, including a deeper discussion of challenges, a prototype of Bitchat over Wi-Fi Aware, and general notes on cross-platform Wi-Fi Aware implementation 👉 grjte.sh/bitchat-wifi-aware
