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

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

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]