Privacy Policy
Last updated: January 28, 2026
We Don't Collect Your Data
CompoundLookup is designed with privacy first. We do not collect, store, or process any personal user data. No accounts, no tracking, no cookies for personalization. Everything happens entirely on the client side in your browser.
1. Information We Don't Collect
Unlike most websites, we have a very simple privacy policy because we don't collect data. Here's what we DON'T do:
- ✗No user accounts - You don't need to sign up or log in
- ✗No search history tracking - Your element selections and searches are not recorded
- ✗No personal information - We don't ask for or store names, emails, or any identifying info
- ✗No cookies for tracking - We don't use cookies to track your behavior across sessions
- ✗No third-party analytics - We don't use Google Analytics or similar tracking services
- ✗No advertising - We don't show ads or share data with advertisers
2. How the Site Works
CompoundLookup operates entirely on the client side. Here's what that means:
- →Static content: The compound database is pre-generated and served as static files. When you search, your browser filters this data locally.
- →No server-side processing: Your search queries never leave your browser. We don't have servers logging what you search for.
- →External links: When you click "View on PubChem," you're taken directly to PubChem's website. Their privacy policy applies there.
3. Technical Information
Our hosting provider may automatically collect basic technical information that's standard for all web servers. This is not something we control or access:
- •IP address (used for routing your request, not stored by us)
- •Browser type and version
- •Pages requested and time of request
This information is automatically logged by web servers for security and performance purposes. We do not access, analyze, or store these logs.
4. Contact Information
If you contact us via email:
- ✓We only use your email to respond to your specific inquiry
- ✓We don't add you to any mailing lists
- ✓We don't share your email with third parties
- ✓You can request deletion of our email correspondence at any time
5. Third-Party Links
CompoundLookup contains links to external websites, primarily PubChem. When you click these links, you leave our site and are subject to the privacy policies of those external sites.
- •PubChem: NIH Privacy Policy
6. Children's Privacy
CompoundLookup is designed to be educational and is suitable for users of all ages. Since we don't collect any personal information, there's no special concern for children's data. Students of any age can safely use our service to learn about chemistry.
7. Changes to This Policy
If we ever change this privacy policy, we'll update the "Last updated" date at the top of this page. Since we don't collect user data, we have no way to notify you of changes directly. We recommend checking this page periodically if you're concerned about privacy.
8. Contact Us
If you have questions about this privacy policy or our practices, please contact us:
Email: [email protected]