Multi-Cloud Encrypted Sharding Backup

Encrypt and split important files across cloud drives, resilient to loss and bans

Problem

Users fear permanent loss of important files due to disk failure or cloud account bans. Existing backup tools either require uploading to provider servers (privacy risk) or don't support splitting files across multiple clouds/drives. Manual command-line sharding is too complex for average users.

Solution

A cross-platform client that locally encrypts and splits files into shards, which users can store across different clouds (iCloud, Google Drive), drives, or USB sticks; supports redundancy schemes like 2-of-3 or 3-of-5 so any qualifying subset restores the file; no registration, and restore is always free.

Users

Privacy-conscious individuals, freelancers, small teams backing up contracts, photos, tax documents, and other critical files.

MVP

Locally encrypt and split files into shards; export to any folder or cloud sync directory; support user-defined redundancy (e.g., 2-of-3); provide a restore wizard that reconstructs from enough shards; cover 2-3 of iOS, Android, Windows, macOS, Linux.

Revenue

Restore is free forever; backup/split and cloud sync advanced features via one-time purchase or annual subscription (e.g., $30/year); offer lifetime membership ($99) as a promotional gift.

Why now

Cloud account bans and data breaches are frequent, driving demand for private, censorship-resistant backup; open-source cross-platform frameworks are mature, enabling a solo developer to build an MVP in 4-6 weeks.