Last Updated: November 24, 2025
TL;DR: We don't collect, store, or share any of your personal data. Period.
No tracking. No analytics. No cookies. No accounts. No data collection of any kind.
At Quarex, privacy isn't just a policy—it's a core ethical principle. We believe that your data belongs to you, and you alone. This privacy policy explains how we handle (or rather, don't handle) your information.
The Quarex browser extension does not collect, store, transmit, or process any user data:
When you use the Quarex extension:
The extension only requests these minimal browser permissions:
These permissions are used only for the stated functionality. No data leaves your device.
The Quarex.org website does not use any third-party analytics, tracking pixels, or advertising networks. We don't know who visits our site, and we like it that way.
Like all websites, our web server automatically logs basic technical information required for operation:
These logs are used only for security purposes and are automatically deleted after 30 days. We never analyze, sell, or share this data.
When you use Quarex Living Books (our AI-powered Q&A interface):
Our Living Books feature uses Google's Gemini API for AI-generated answers. When you ask a question:
We use our own API key, so Google doesn't associate questions with individual users.
Quarex services are not directed to children under 13. We do not knowingly collect information from children. Since we don't collect any user data at all, this is inherently protected.
Since we don't collect or store user data, there's no user data to secure. The best security is not having your data in the first place.
Under various privacy laws (GDPR, CCPA, etc.), you have rights regarding your personal data. Since we don't collect any personal data, there's nothing to access, delete, or export. You're already in full control.
If we ever change our privacy practices, we'll update this page and change the "Last Updated" date at the top. We will never start collecting data without making it explicitly clear and giving you a choice.
Questions about privacy?
Email: [email protected]
Website: Quarex.org
Legal Name: Peter Nehl
Product: Quarex Browser Extension
This privacy policy reflects our core ethical principles:
Learn more about our ethics at quarex.org/ethics