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skyjt

teahouse

skyjt

A pure intranet, IP-based LAN instant messaging and file transfer tool that requires no internet connection or server setup — just open it to chat and transfer files within the LAN.

v0.61.4
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2d ago
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Latest release

v0.61.4Oct 17, 2026, 01:43 AM
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README

Project Overview

Teahouse is a pure intranet, IP-based LAN instant messaging and file transfer tool. In the same LAN, each computer running Teahouse automatically discovers others, and you can click to send messages and transfer files. It never touches the external network or relies on any server — data stays within the intranet. Suitable for corporate intranets, isolated networks, laboratories, and other environments where external network access is inconvenient or prohibited.

Key Features

  • Zero-configuration discovery: UDP broadcast automatically discovers online colleagues on the same subnet, with direct peer-to-peer communication
  • Cross-subnet and LAN updates: Supports manually adding peer IPs and CIDR subnet probing
  • Instant messaging and group collaboration: One-on-one and group chats, text, images, screenshot paste, Twemoji, message delivery confirmation, offline queuing, recall, forward, quote reply, @ mentions, group intro and announcements, window vibration alerts
  • High-speed P2P file transfer: TCP point-to-point direct connection, saturating LAN bandwidth, with resumable transfers and transfer history
  • Shared file cabinet: Publish local folders with global default permissions and per-contact authorization, drag-and-drop upload
  • Standalone image viewer with offline OCR: Zoom, rotate, image history switching, built-in PaddleOCR offline text recognition
  • Native screenshot tool: Rectangle selection, brush, arrow, mosaic, text annotation
  • Screen assistance: Initiate from private chat, recipient consents and selects screen each time

Target Audience

  • Users in corporate intranets, isolated networks, and laboratories
  • Users who need LAN-based instant messaging and file transfer
  • Windows, UOS, and macOS users

Quick Start

  1. Download the version for your platform from GitHub Releases
  2. Install and launch Teahouse
  3. Automatically discover online users on the same subnet and start chatting and transferring files

Core Advantages

  • Zero configuration, ready to use
  • Pure intranet direct connection with no external network or server dependency
  • Cross-platform support from Windows 7 to UOS and macOS
  • Open-source and free

System Requirements

  • OS: Windows 7+, UOS, macOS

Release history

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