ShareThisFolder

ShareThisFolder is a lightweight Windows folder sharing tool that quickly shares the current folder with phones and other devices.

Links

• GitHub repository - https://github.com/lnblxj/ShareThisFolder
• Releases - https://github.com/lnblxj/ShareThisFolder/releases

New Features

• UPnP port mapping - when public access is requested, the app first tries to create a router UPnP port mapping.
• STUN tunnel fallback - adds STUN public endpoint discovery and local forwarding for compatible NAT environments.
• Windows Explorer address-bar quick launch - after enabling quick launch in Settings, type stf in the Windows Explorer address bar to share the current folder.

Features

• One-click LAN sharing - run the executable in the folder you want to share, and the folder can be accessed over the local network.
• Mobile-friendly browser page - provides a clean mobile directory browser and file download page.
• Multilingual UI - automatically detects the system language and supports multiple languages.
• Single executable - the sharing host only needs to download and run the executable.
• Quick launch - install the system-level stf command from the Settings menu.
• Public access - supports intranet traversal as much as possible, including NAT3 network environments.

Quick Start

Download

Download the latest version from Releases.

Build from Source

Requires Visual Studio 2022 with the C++ desktop development workload.

cmake -S . -B build -G "Visual Studio 17 2022" -A x64
cmake --build build --config Release

The executable will be generated at build/Release/ShareThisFolder.exe.

Usage

Share the Current Folder

1. Put ShareThisFolder.exe into the folder you want to share.
2. Double-click it, or run it from a terminal.
3. Open the LAN address shown in the menu from your phone or another device.
4. Press an address number to copy the corresponding URL.
5. Press s to choose an address and show its QR code.
6. Press q or Ctrl+C to stop sharing.

Enable Public Access

Press w in the main menu. The app will try to open a NAT tunnel. If hole punching succeeds, a WAN address is added to the menu.

Public access availability depends on the router, ISP, firewall, and NAT type. Enabling UPnP on the router is recommended to improve the success rate.

Set Up Windows Explorer Quick Launch

1. Press e to open Settings.
2. Choose Set quick launch.
3. Approve the Windows administrator permission prompt.
4. The app copies itself to C:\Program Files\ShareThisFolder\stf.exe and adds that directory to the system Path.
5. Open any folder in Windows Explorer, type stf in the address bar, and press Enter to share the current folder.

To remove it, choose Remove quick launch from the Settings menu.

License

MIT