Chat on your
local network.
No internet needed.

LanChGo lets every device on your network talk instantly — no accounts, no servers, no cloud. Just open and go.

Download Free See Features

Features

Everything you need.
Nothing you don't.

Built for speed and simplicity — LanChGo removes every barrier between you and the people on your network.

🌐

Auto LAN Discovery

Devices on the same network appear automatically. No IPs to type, no configuration needed.

⚡

Two-Click Setup

Open the app and start chatting. Maximum two clicks from launch to connected.

📂

File Transfer

Send files between Windows and Android in any direction — all over your local network.

🔒

Secure Channels

Optional PIN-based encrypted channels. Enable with one toggle when you need privacy.

🔄

Network Change Detection

Automatically detects network changes and refreshes broadcasts so you stay connected.

🥚

Easter Eggs

Hidden surprises scattered throughout the app. Find them all — or try not to.

🏷️

User Names

Set a name that shows under your messages, so everyone knows who is talking. Turn it off any time.

📊

Polls

Ask a question, let everyone on the network vote, and see the results as bars, a pie or columns.

💻

Web Companion

Join from any browser, no app needed. Chat and send files from your phone or desktop to any device.

Security

Two modes.
You choose.

By default, LanChGo broadcasts messages openly on your local network. When you need privacy, switch on a Secure Channel — no internet involved either way.

📢
Public Mode (default)Messages are broadcast to all devices on the LAN. Fast, simple, no setup.
🔐
Secure Channel (opt-in)Enable with one toggle. PIN-based encryption — only devices with the correct PIN can read your messages.
🧂
Fresh Key Every SessionA random salt ensures each secure session generates a completely unique encryption key.
🚫
Always LocalNeither mode ever sends data over the internet. Everything stays on your network.

Secure Channel

Encryption stack powering LanChGo's optional secure mode

AES-256-GCM PBKDF2-HMAC-SHA256 Random Salt Per-Session Keys Fully Offline

How to set up a Secure Channel →

Updated in v1.6.0

Web Companion.

No app needed on iOS, macOS, or any other device. Windows and Android can host the Web Companion, allowing any device with a browser to join your session instantly — chat and send files both ways, all over your local network.

Start it on Windows or AndroidClick Web Join in the desktop app, or switch on Web Companion from the menu on your Android phone.

Show the QR codeA QR code appears — your mini local server is now running.

Scan, chat and send filesAny device with a browser connects instantly. No app, no account, no internet.

Open Web Companion

Download

Get started in seconds.

Free on all platforms. No account required.

Windows

LanChGo Desktop

Version 1.10.0 · Open Source

Download Installer View Source

Android

LanChGo Mobile

Version 1.6.0 · Google Play

Google Play

Linux

LanChGo Linux

Version 1.0.0 · .deb package

Download .deb Coming Soon

Secure channel guide — Windows/Linux Secure channel guide — Android

Changelog

Latest updates.

LanChGo is actively developed with new features shipping regularly.

Android v1.6.0 - Latest

Names, Web Companion & Polls

User names: set a name that shows under your messages
Web Companion on Android: chat and send files from any browser on the same network
Polls: create a poll, vote, and see the results as bars, a pie or columns
Resend file offer for transfers
New "Messages to keep" setting
Feedback now asks for some context before it can be sent
Bug fixes and improvements

Windows v1.10.0 - Latest

Names & Polls

Added device unique ID
Ability to add a name to your device
Introduced polls with voting and results displayed in bar, column, and pie charts

Linux - Latest

Initial version

Initial version

Chat on yourlocal network.No internet needed.

Everything you need.Nothing you don't.

See LanChGo in action.