Share Via WiFi
A free, peer-to-peer file-sharing web app that transfers files directly between devices on the same local network using WebRTC — no cloud upload, no account, no app install. Built solo, end to end.
Web App · Tool2025- Role
- Full-Stack Developer · Deployment
- Company
- Personal Project
- Year
- 2025
- Stack
- WebRTCNext.jsExpressTailwind
The problem
Traditional file sharing often relies on cloud services, requiring uploads, accounts, and sometimes app installations, which can introduce privacy concerns and friction for quick, direct transfers on a local network.
What I built
- 01
A web application for direct, peer-to-peer file transfers over a local WiFi network.
- 02
Implemented WebRTC for secure, end-to-end encrypted device-to-device communication.
- 03
A signaling server to facilitate device discovery without touching file data.
- 04
Designed for no signup, no cost, and no limitations on file count (with a 100MB per file limit).
- 05
Ensures cross-platform compatibility across modern browsers on various operating systems.
- 06
Engineered for zero data collection, prioritizing user privacy.
The outcome
Developed a privacy-focused, highly accessible, and efficient solution for local file sharing. The project demonstrates a practical application of WebRTC for secure, direct peer-to-peer communication, bypassing traditional cloud-based bottlenecks and privacy concerns. It provides users with a simple, browser-based tool for quick file transfers without any installation or account requirements.