Privacy Policy for History Chat

Last Updated: October 13, 2025

Overview

History Chat is a Chrome extension that allows users to search their browsing history using natural language queries. This privacy policy explains how we handle your data.

Data Collection and Usage

What Data We Collect

• Browsing History: We access your Chrome browsing history (URLs, page titles, visit timestamps) when you click "Sync History"
• Chat Messages: Your questions and the AI's responses are stored locally in your browser
• Music Metadata: For YouTube and Spotify pages, we extract song titles, artist names, and video descriptions to improve search accuracy
• User Preferences: Settings like theme preference, API configuration, and sync preferences

How We Use Your Data

• Local Processing: Your browsing history is processed locally in your browser and sent to our backend server only when you click "Sync History"
• AI Search: We use OpenAI's API to convert your browsing history into searchable embeddings and to generate responses to your queries
• No Selling: We never sell, rent, or share your personal data with third parties for marketing purposes

Data Storage

• Local Storage: Chat history and preferences are stored in Chrome's local storage on your device
• Backend Database: Your browsing history embeddings are stored in our ChromaDB vector database, isolated by your unique user ID