Hi! Suggesting FileShot.io as a useful tool resource.
FileShot.io: https://fileshot.io
GitHub: https://github.com/FileShot/FileShotZKE
License: MIT
FileShot implements AES-256-GCM client-side file encryption using the Web Crypto API. The React/JS community may find the zero-knowledge encryption pattern useful as a reference for building similar features in their own apps. Free, open source, browser-based.