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FileDrop Practical Guide: The Ultimate Tool for LAN File Transfers

a year ago

What is FileDrop?

In simple terms, FileDrop is a tool that lets you quickly transfer files between devices on the same WiFi network. Think of it like AirDrop, but cross-platform and completely free and open-source.

Core Features:

  • 🔒 End-to-End Encryption - Files are encrypted on your device; the server is just a "mail carrier"
  • 🚀 Local Network Direct Transfer - No external internet required, extremely fast speeds
  • 💻 Cross-Platform Support - Works on Windows, Mac, and Linux
  • 🆓 Completely Free - Open-source project, no ads or hidden tricks

https://appstore.lazycat.cloud/#/shop/detail/in.zhaoj.filedrop

How to Use

After installing the app, open the home page and first set a name.

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On any device (phone, tablet, another computer) on the same WiFi network, open a browser and enter the address you just saw: https://filedrop.your-lazycat.heiyu.space/

Then, choose a username and log in.

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Within the same network, you can see the user from the computer side.

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Click the button to request permission.

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Click 'Accept' on the computer side.

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Click 'Sendfile' to send a file.

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The computer side can then directly save the file to the computer.

Sending a file from the computer side follows the same process; save the file on the mobile device side.

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You can see the file.

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Many people are concerned about security. Here's a brief explanation of FileDrop's encryption mechanism:

  1. RSA Key Pair Generation: Each time the page is opened, the browser generates an RSA public-private key pair.
  2. AES Symmetric Encryption: During transfer, a 256-bit AES key is generated to encrypt the file.
  3. RSA Asymmetric Encryption: The AES key is encrypted using the recipient's RSA public key.
  4. Server Cannot See Data: The server only sees the encrypted data.

In simple terms: even if someone intercepts the transmitted data, they cannot decrypt it without the private key.

If you have a need for transferring files over a local network, why not give FileDrop a try.

Project Address: https://github.com/Xtrendence/FileDrop

Author
天天