# Privacy Policy — Explain It Chrome Extension **Last updated:** March 2026 ## What data we collect **None.** Explain It does not collect, store, or transmit any personal data to our servers. ## Your API Key Your Anthropic API key is stored **locally in your browser** using Chrome's built-in `chrome.storage.sync` (synced only to your own Chrome profile via Google). It is never sent to any server other than Anthropic's API directly. ## What gets sent to Anthropic When you select text and click Explain, the selected text is sent directly from your browser to [Anthropic's API](https://anthropic.com) using **your own API key**. This is governed by [Anthropic's Privacy Policy](https://anthropic.com/privacy). ## No tracking, no analytics We don't use any analytics, tracking pixels, or third-party services. ## Contact Questions? Open an issue on our GitHub repository.