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Secure, Login-Free File Transfers with File_Storage


This content originally appeared on DEV Community and was authored by Naman Srivastava

Secure, Login-Free File Transfers with File_Storage

Ever been stuck on a public lab computer and needed to get your files to your own device—without logging into your email, Google Drive, or Dropbox?

That’s exactly why I built File_Storage — a lightweight, PIN-protected web app for quick, secure file transfers.

Why File_Storage Exists

When working in shared environments like college computer labs or public workstations, logging into personal accounts can feel risky.

I wanted a solution that:

  • Works without sign-ups or logins
  • Protects files from unwanted access
  • Is easy enough for anyone to use in under 10 seconds

What It Does

With File_Storage, you can:

  • Upload any number of files to a secure online folder
  • Download them later from any device
  • Delete files instantly when you’re done

All through a clean, responsive web interface — no accounts, just a PIN.

How It Works

1. Secure Backend

  • Google Drive API handles storage, powered by a dedicated Service Account
  • No credentials in the code — everything is stored in environment variables
  • A simple PIN system ensures only authorized users can access the interface

2. User Flow

  1. Enter the access PIN
  2. Upload files (single or multiple)
  3. Download instantly, or delete when no longer needed

Tech Stack

  • Backend: Flask (Python), Google Drive API
  • Frontend: HTML, CSS, JavaScript (AJAX for smooth uploads/deletes)
  • Security: Service Account keys via environment variables, no password storage
  • Hosting: Cloud platform (e.g., Render)

Deploy Your Own

Want to run your own instance?

  1. Create a Google Cloud project and enable the Drive API
  2. Make a Service Account, generate a JSON key, share your Drive folder with it
  3. Deploy the Flask app to a cloud host
  4. Set the GOOGLE_APPLICATION_CREDENTIALS_JSON environment variable

(Full setup guide in the GitHub README)

Who Should Use It

  • Students & Teachers — Move files without touching your email
  • Teams — Quick, private file drops without a complex sharing setup
  • Anyone — Needing simple, secure file transfer in seconds

Final Thoughts

File_Storage turns file transfer from a tedious task into a fast, private, login-free process.

Whether you’re working in a lab, at a library, or on a friend’s laptop, your files are just a PIN away.

🔗 View File_Storage on GitHub


This content originally appeared on DEV Community and was authored by Naman Srivastava