About Black Box Diary
Your intelligent, secure note-taking companion
Our Mission
Boost Productivity
We help you capture ideas instantly so you can focus on what matters
Protect Your Thoughts
Military-grade encryption keeps your private notes truly private
Enhance Creativity
Our AI helps refine and develop your ideas automatically
Why Choose Black Box Diary?
AI-Powered Assistance
Automatic summarization, grammar correction, and meeting notes generation
End-to-End Encryption
Your notes are encrypted before they leave your device
Cross-Device Sync
Access your notes anywhere, anytime, on all your devices