AI Diary
liveA thoughtful journaling app that combines daily writing with AI-driven insights. Write freely about your day, and the app analyzes your entries to reveal mood patterns, Big Five personality traits, and writing style metrics over time. A companion chat powered by Claude provides reflective conversation and can extract actionable todos from your entries. The mood timeline tracks emotional valence across 90 data points, while the profile page surfaces emotion patterns, vocabulary level, and topic trends. All data persists locally in the browser for complete privacy — no server-side storage of personal content.
Screenshots
Tech Stack
Why It Works
AI companion chat extracts todos and provides reflective conversation from journal entries
Big Five personality profiling and mood timeline built from cumulative writing analysis
Privacy-first architecture with all personal data stored locally in the browser
Writing style analytics track formality, verbosity, vocabulary, and recurring topics
Want the how and why?
I write up builds like this one — the timeline, the method, and the parts worth copying. No fluff, just what actually happened.