Squiggle LAN Messenger is a free, open-source, peer-to-peer (P2P) instant messaging application designed specifically for communication within a Local Area Network (LAN). It is built primarily for office environments and teams that require local communication without relying on an internet connection or a centralized server. Core Architecture and Setup
Server-Less Operation: Squiggle operates strictly on a peer-to-peer basis. Peers automatically discover each other on the local network via multicast, meaning you do not have to host or maintain a central chat server.
Zero Configuration: The software is portable and lightweight. There is no installation process required—you simply download, unzip, and run the executable file to immediately see and talk to others on your network.
Security & Isolation: Because all chat logs, files, and interactions remain completely inside your office intranet, data does not leave the local network. This eliminates external spam and mitigates data leak risks. Key Features
Communication Options: Supports standard one-on-one text messaging, group chat rooms, and broadcast messages to alert everyone on the network simultaneously.
File & Media Sharing: Features direct file transfer capabilities and built-in screen capture/sharing to show your desktop to colleagues.
Voice Chat: Includes voice call capabilities directly over the local network to bypass traditional phone lines.
Usability Tools: Equipped with spell check, emoticons, tray pop-ups for online/offline notifications, and local chat history logs.
Subnet Bridging: Includes a cross-subnet bridging feature that allows two distinct local networks or VPN setups to connect and communicate. Limitations to Consider
Platform Dependence: It was originally built as a lightweight client primarily optimized for Windows environments.
Development Status: Squiggle is a legacy tool originally hosted on platforms like CodePlex and Squiggle on GitHub. It has not received active feature updates for several years, meaning it may struggle with modern multicast policies or complex Windows configurations.
If you are looking to set up an offline office chat, I can provide the exact download links, guide you through configuring subnets, or suggest modern open-source alternatives (like Openfire or LAN Messenger). Let me know how you would like to proceed! hasankhan/Squiggle: A free open source LAN Messenger
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