Privacy Policy

Last Updated: January 25, 2026

Chat Highlight is a personal knowledge management tool designed to help you capture, organize, and revisit information across the web—including AI chat platforms like ChatGPT and Gemini. All features (highlighting, note-taking, tagging, and cloud sync) serve this single purpose: building your personal knowledge base. Our business model is based on providing a premium productivity tool, not on selling your data. This policy outlines exactly what we collect, where it lives, and how we protect it.

TL;DR (The Short Version):

Local First: Your highlights are stored in your browser first. Cloud sync is optional but recommended for backup.
No AI Training: We are a storage tool, not an AI bot. We do NOT use your data to train any AI models.
No Selling: We never sell your personal data or reading history to advertisers.

1. Our "Local-First" Architecture

Unlike many web services, Chat Highlight operates primarily on your device. It is crucial to understand where your data lives:

Local Data (Chrome Storage): When you highlight text, that data is instantly saved to your browser's local storage (`chrome.storage.local`). This ensures zero latency and offline access. This data stays on your device until you choose to sync.
Cloud Data (Sync): If you sign in, we synchronize your highlights to our secure cloud database (hosted via Firebase/Supabase). This allows you to access your knowledge base from the Dashboard (`viewer.html`) or other devices.

2. Information We Collect

A. Information You Give Us

Account Info: When you sign up via Google, we receive your email address, name, and profile picture avatar.
User Content: The text you highlight, the notes you write, and the tags you create. We also store the URL of the page where the highlight was made to allow you to jump back to context.

B. Information We Do NOT Collect

Browsing History: We do NOT track your browsing history. The extension only activates when you explicitly engage with it or when it scans a page to re-render your existing highlights. We do not know which websites you visit unless you have highlighted something on them.
Passwords or Sensitive Fields: Our extension is programmed to ignore input fields (like password boxes) and sensitive DOM elements.

3. Extension Permissions Explained

To function, our browser extension requires permission to "Read and change all your data on the websites you visit." We understand this sounds scary, so here is exactly why we need it:

"Read": To detect the text you selected so we can save it.
"Change": To inject the highlighting style (the yellow background color) into the webpage's HTML (DOM) so you can see what you marked.

We strictly use these permissions solely for the core knowledge management functionality of the tool—capturing and displaying your highlights—and never for surveillance, browsing activity tracking, or any unrelated purposes.

4. AI & Data Usage

Given that our tool is used to highlight AI chats (like ChatGPT), users often ask if we use this data for training.

Our Stance is Clear: We are a storage tool, not an AI bot.

We do not provide generative AI features, and we do not send your data to any AI service for processing. Consequently, we do not use your highlights, notes, or chat logs to train, fine-tune, or improve any Large Language Models (LLMs). Your data remains strictly your private intellectual property.

5. Data Sharing & Third Parties

We do not sell your data. We only share data with trusted infrastructure providers required to run the service:

Authentication & Database: We use industry-standard providers (like Google Firebase or Supabase) to securely host our database and handle user login.
Payment Processing: If you upgrade to VIP, payments are processed by secure payment gateways (like Stripe). We never store your credit card details.

6. Your Rights (GDPR & CCPA)

You have full control over your data:

Export: You can export all your local data directly from the extension Popup at any time (JSON/Markdown/HTML).
Delete: You can request the deletion of your cloud account and all associated data by contacting support. Local data can be removed by simply uninstalling the extension.

7. Security

We employ encryption for data in transit (HTTPS) and data at rest in our cloud database. However, please remember that no method of transmission over the internet is 100% secure.

8. Contact Us

If you have questions about this policy or want to exercise your privacy rights, please contact us at:

Email: iresearch666@gmail.com