A trustless, secure file management solution using military-grade encryption.

The spark for making Excalibur came when I needed to archive some security documents and contracts. I wanted to be able to access these documents from anywhere at any time, but because they contained sensitive information, I was not comfortable with storing them on existing cloud storage solutions (e.g., Google Drive, Dropbox, etc.). I needed a way to store these files online, thus making them accessible, but encrypted.

After a few months of work, I was able to design and implement Excalibur. It is a trustless, secure file management solution using military-grade encryption.

I have also written a blog post on the design of Excalibur.

Features

• ✨ User-Friendly: Simple, intuitive interface that makes secure file storage effortless.
• 🛡️ Military-Grade Security: State-of-the-art encryption algorithms protect your files at rest and in transit.
• 🕵️ Zero-Trust By Default: Designed with zero-trust principles in mind. Trust no one but yourself.
• 🔒 End-to-End Encryption: Data in transit are always encrypted using AES-GCM.
• 🗝️ Zero-Knowledge Authentication: Your password never leaves your device.
• 📱 Multi-Platform: Available as an Android app and a Progressive Web App (PWA).
• 📦 Open Source: Fully transparent and auditable codebase for maximum trust.
• 🗺️ Attestations: Everything has a publicly traceable provenance.
• 🖥️ Self-Hostable: Deploy your own instance for complete control over your data.

Screenshots