Bitchat

Hey Product Hunters 👋

Excited to hunt Bitchat today! 🤩

Imagine, what if messaging worked even when the internet didn’t?

BitChat is a privacy-first, peer-to-peer messaging app that runs entirely over Bluetooth mesh networks — no servers, no SIM cards, no internet.

Most messaging apps rely on centralized servers, persistent IDs, and account systems. That creates a single point of failure, tracking risks, and makes them unusable in offline or censored environments.

BitChat flips that model. It’s:

• Fully decentralized – messages hop device to device, mesh-style

• End-to-end encrypted using X25519 + AES-256-GCM

• Runs natively on iOS & macOS

• Built for zero registration and zero trust environments

• Adds fun IRC-style commands for real groupchat nostalgia

• And features like emergency wipe, cover traffic, and battery-aware scanning show how serious the team is about privacy & UX.

Use Cases:

• Local community chats at protests or festivals

• Mesh-based team communication in disaster zones

• Group messaging in remote areas without mobile coverage

• Students or travelers looking for ultra-private, no-footprint messaging

Who it’s for:

Privacy maximalists, off-grid enthusiasts, protest organizers, hackers, researchers, and anyone building future-proof communication infrastructure.

Open source. Public domain. Protocol-first.

If you're into mesh networking, cryptography, or local-first software, this is worth diving into. The protocol is also Android-ready for those who want to port it.

👉 Try it, fork it, contribute and join the mesh. Here's the GitHub link: https://github.com/permissionlesstech/bitchat

Super cool concept! sounds like the walkie-talkie of future.

I build a chat application using BLE for my bitsflow hardware (BBC micro:bit like hardware) it use BLE advertisement for sending message. I also use esp-now for building same messaging system, it also uses Wi-Fi advertisement for sending message. This is very cool projects but use case is very limited.