LANterm · open source · MIT

Chat on your LAN.
No server. No cloud.
No trace.

Peer-to-peer terminal chat for everyone on the same Wi‑Fi. Windows, macOS, and Linux. One binary. Zero runtime. Fully decentralized.

View on GitHub
LAN
local area network — your local WiFi or wired network
term
terminal — where the app runs

LANterm = chat with everyone on your local network, straight from your terminal.

Features

Built for the local network, not the cloud.

  • Zero setup

    Single binary for your OS. No Node, no runtime, no installer dance.

  • Serverless & private

    Pure peer-to-peer UDP. Nothing leaves your LAN. No accounts, no telemetry.

  • Auto-discovery

    Peers on the same Wi‑Fi just appear. Heartbeats in, prune out — no directory.

  • Your name, your call

    Pick a username on first run. Change it anytime with /nick.

  • Cross-platform

    Windows, macOS, and Linux — same LAN, mixed machines, one protocol.

  • Open source (MIT)

    Read it, fork it, ship it. Free forever under the MIT license.

How it works

Three steps. Same Wi‑Fi. Done.

  1. Download the binary

    Grab the build for Windows, macOS, or Linux. No Node for end users.

  2. Run it & pick a username

    First launch asks for a name, then you’re on the LAN.

  3. Peers appear — start chatting

    Anyone else on the same Wi‑Fi running LANterm shows up automatically.

Quick start

Install & run

Download (Windows x64) 
curl -L https://github.com/yash-js/lanterm/releases/latest/download/lanterm-windows-x64.exe -o lanterm.exe
.\lanterm.exe
Build from source (any OS) 
git clone https://github.com/yash-js/lanterm.git
cd lanterm
npm install
npm run build:win        # or build:mac / build:linux / build:all

Open source

Free. MIT-licensed. Yours to fork.

LANterm is launching open source on GitHub. Star the repo, open an issue, or grab a good first issue and ship a PR.

Star on GitHub Issues Good first issue