A high-fidelity, premium file sharing platform designed for both ultra-fast local network transfers and cloud-native secure sharing. Experience seamless, PIN-verified file transfers with zero setup.
Local Drop has evolved into two powerful ecosystems:
Location: /localdrop_webapp
Built for the modern web, this version is designed for deployment on Netlify.
- Technology: React 19 + Vite + TypeScript.
- Backend: Netlify Functions (Serverless).
- Storage: Netlify Blobs for global reach.
- Key Features:
- Chunked Transfers: Reconstructs large files in the browser via 1MB chunks, bypassing serverless limits.
- High-Fidelity UI: Premium Glassmorphism design with a split-panel layout.
- Human-in-the-Loop Security: Sender generates a random 2-digit PIN; Receiver must unlock via a 4-option decoy grid.
- Phone-to-Laptop Pairing: A short-lived 8-character code lets the laptop find a phone's uploaded drop without scanning a QR code or manually moving a URL.
- Wireless Handoff: On supported phones, the system share sheet can send the link and pairing code to the laptop. Otherwise, enter the code on LocalDrop's Receive screen.
- QR Sharing: QR links remain available as an alternate way to open a drop.
The web app uses Netlify as a temporary cloud relay, so the phone and laptop can be on different networks. Pairing codes expire with their drop after 15 minutes. The receiver still completes the existing PIN selection step before downloading.
Location: /localdrop_andriod
The classic, ultra-secure local-only P2P transfer utility.
- Technology: Flutter / WebRTC.
- Security: Direct P2P tunnel; data never leaves your local LAN.
- Speed: Limited only by your router's hardware.
- Node.js 20+
- Netlify CLI (
npm install -g netlify-cli)
- Navigate to the webapp directory:
cd localdrop_webapp - Install dependencies:
npm install
- Run with Netlify Dev (simulates Blobs & Functions):
npx netlify dev
Experience one-click deployment to Netlify:
npx netlify deploy --build --prodLocal Drop prioritizes verification over trust:
- Pairing: The web app creates a random 8-character code that maps to the uploaded drop and expires with it.
- Verification Phase: Upon upload, a random secret code (0-99) is generated and shown only to the sender.
- Access Control: The receiver is presented with four numbered options. Only picking the correct one matches the cryptographic hash on the server to unlock the download.
- Ephemeral Storage: Cloud drops expire after 15 minutes.
- Created by: Surajit Sahoo
- Repository: LocalDrop-fileshare
- Contact: onlyforcode007@gmail.com
MIT License. Open source and free to scale.