Serverless chat and file sharing over your local network.
Role
Built solo
Timeline
Sep 2025 – Dec 2025
Status
Status: Shipped
Stack
Java, TCP/UDP Sockets, Java NIO +1
PPeer Link
01Problem
On the same local network, chatting or sharing a file still depends on internet services and central servers. They require accounts, add latency, and keep copies of your data.
02Solution
A serverless mesh: peers discover and talk to each other directly over TCP/UDP sockets. A multithreaded Java NIO architecture handles messages and file transfers at the same time without blocking.
How it works
Step 01Peers discover each other on the LAN (UDP)
Step 02Direct TCP connections, no central server
Step 03Non-blocking multithreaded messaging and file transfer (Java NIO)
Step 04Private rooms held only in memory
03Product
Peer Link: a serverless LAN chat and file-sharing platform with private virtual rooms held in volatile memory, so communication stays isolated and no user data persists.
Key features
Serverless peer-to-peer architecture
Simultaneous chat and file transfers without blocking