ADrop

Ultra-fast offline local file transfer for Windows - up to 150+ MB/s over WiFi.

Transfer files between your phone and PC - no internet, no cables, no apps to install.

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Desktop Dashboard	Mobile UI

Features

Feature	Description
Instant Local Transfer	Transfer at up to 150+ MB/s over WiFi with zero throttling. No internet needed. Works over WiFi, Mobile Hotspot, or USB Tethering.
QR Code Connection	Just scan the QR code with your phone's camera. No app installation needed - works in any mobile browser.
Smart Clipboard Sharing	Share text instantly between devices. Auto-detects URLs, phone numbers, OTPs, and email addresses with one-tap Smart Action chips.
Media Streaming & Preview	Preview videos, images, audio, PDFs and documents directly in browser. Full video seeking support with HTTP Range Requests.
Resumable Uploads	Large file transfers resume automatically if interrupted. Never start from scratch.
PIN Protection	Optional PIN code security to restrict access.
Batch ZIP Download	Select multiple files or download all files as a single ZIP archive.
RAM-Safe Streaming	Constant memory usage regardless of file size. Processes files in 2-4 MB chunks - tested with multi-GB files.
Installable PWA	Install ADrop on your phone's home screen for instant access. Works offline with Service Worker caching.
Zero-Copy Local Sharing	Share files directly from any drive on your PC without copying. Files stream from their original location.
Auto-Configuration	Auto-detects network IP, creates Windows Firewall rules, opens browser automatically. Just double-click and go.
Real-Time Sync	WebSocket-powered instant sync. File list and clipboard update across all connected devices in real-time.

Download

Option	Description	Link
Installer (.exe)	Automated setup. Installs ADrop on your PC.	Download ADrop.exe
Portable (.zip)	No installation required. Just extract and run.	Download ADrop-Portable.zip

Quick Start

1. Download - Get ADrop.exe (Installer) or ADrop-Portable.zip (Portable) from the Releases.
2. Run - Double-click ADrop.exe. It auto-opens your browser and shows a QR code.
3. Connect - Scan the QR code with your phone. Start transferring files instantly!

Screenshots

Desktop Interface

Drag & Drop Upload Zone	File List & Controls
Video Preview with Player	Audio Preview
Smart Clipboard with Actions	Native File Browser

Mobile Interface

Main Interface	File List	Upload Complete
Smart Clipboard	OTP Auto-Detect	System Diagnostics

Tech Stack

• Backend: Aiofiles
• Frontend:
• Transfer: WebSockets, Web Workers, Service Workers (PWA)
• Build: PyInstaller (Standalone .exe)

Architecture

+--------------------+        +--------------------+        +--------------------+
|                    |        |                    |        |                    |
|  Client Browser    | <====> |   FastAPI Server   | <====> |    File System     |
|  (Mobile/Desktop)  |   WS   |   (Uvicorn Host)   |        |  (PC Local Drive)  |
|                    |        |                    |        |                    |
+--------------------+        +--------------------+        +--------------------+
       |   |                           |                             |
       |   +--- HTTP Range Requests ---+                             |
       |                                                             |
       +--- Service Worker (PWA)                                     |

License

This project is licensed under the MIT License.

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Built with ❤️ by Aman Vishwakarma