rivacy Policy for LLM Token Tracker & Cost Estimator
Effective Date: June 19, 2026

We are committed to protecting your privacy. The LLM Token Tracker & Cost Estimator browser extension is designed with a strict local-only, offline-first architecture. We do not collect, transmit, share, or sell your personal data.

Below are the details of our privacy practices.

1. Data Processing and Storage
   Local Processing: All data scanning, text analysis, and token estimations occur entirely on your local device within the browser's sandbox environment.
   Local Database: Your accumulated token metrics, conversation titles, message counts, and customizable model rates are saved strictly in your browser using the local sandbox storage API (chrome.storage.local).
   Zero Data Transmission: The extension does not transmit any data over the internet. There are no remote servers, databases, or third-party APIs connected to this add-on. Your conversation content and usage statistics never leave your device.
   No Third-Party Analytics: We do not include any trackers, cookies, or analytics scripts (such as Google Analytics or Mixpanel) in the extension.
2. Permissions Disclosures
   The extension requests only the minimum necessary permissions to function:

storage: Required to persist your compiled usage history and custom model rates locally.
Host Permissions (https://chatgpt.com/, https://gemini.google.com/, https://claude.ai/*): Required to inject a local content script that:
Scrapes the message length and word count to estimate token sizes.
Renders a floating visual Token Meter overlay on the page. Note: This script operates entirely offline. No scanned conversation text or metadata is ever collected or sent to external servers.
3. Third-Party Services and Websites
The extension interacts locally with the user interfaces of third-party platforms (ChatGPT, Gemini, and Claude). We are not responsible for the privacy practices, policies, or data collection of these third-party platforms. Please refer to their respective privacy policies for details on how they handle your data.

1. Changes to This Privacy Policy
   We may update this Privacy Policy from time to time. Any updates will be reflected in the extension packaging and release notes. Because the extension has no data transmission capabilities, updates will only govern local data handling.
2. Contact and Support
   If you have any questions or feedback regarding this Privacy Policy, please open an issue on our official project repository or contact the developer directly.