chardy safe

chardy safe is a client-side encryption web app for text and files. Built around AES-256-GCM with PBKDF2 key derivation, everything runs entirely in the browser. No data is ever sent to a server.

I built this as a personal utility after wanting a simple, trustworthy way to encrypt sensitive notes and files without relying on third-party services. It also supports PWA installation, so it works offline and can receive files directly from your phone's share sheet.

Fun fact: I originally built this to store my own passwords, and it worked so well that my family now uses it too to secure their personal data.

This website is built with the following main stack:

• Frontend: React + TypeScript + Tailwind CSS
• Encryption: Web Crypto API (AES-256-GCM + PBKDF2)
• Build Tool: Vite