Project MagDrive: An open-source desktop app that encrypts and splits files across Google Drives

Description and use

MagDrive encrypts files client‑side, splits them with Reed‑Solomon coding, and distributes shards across multiple Google Drive accounts, providing privacy and redundancy.

Problem

Users want to securely store large files across multiple free Google Drive accounts without exposing data to Google or losing access if an account fails.

Outcome

MagDrive enables secure, redundant storage of large files across multiple free Google Drive accounts, protecting data from Google and ensuring recoverability if an account fails.

Workflow

• Connect one or more Google Drive accounts via OAuth
• Select files to upload
• MagDrive encrypts files locally with AES‑256‑GCM
• Splits encrypted files into shards using Reed‑Solomon erasure coding
• Distributes shards across the connected drives
• Reconstructs files locally when downloaded
• Optional: uses Swarm Tracker for peer discovery

Evidence

Files are scrambled on your computer (client‑side AES‑256‑GCM) before anything touches Google's servers, so Google cannot see your files or filenames.

Source

It breaks larger files into pieces and spreads them across your connected drives using Reed‑Solomon erasure coding.

Source

You can combine multiple free Google accounts into one bigger storage space.

Source