This fills a real need for me. It does nearly everything I want.<p>Aside from the program itself, your documentation is really good, and special +1 for documenting the crypto thoroughly (and another +1 for using NaCl's building blocks in a safe way).<p>As a related point, I recently bought a Chromebook (still unopened), which pushes you heavily towards storing your files in Google Drive. It makes me uneasy to store certain things unencrypted, so I'll investigate writing a compatible implementation for ChromeOS.