Privacy policy
2026-09-23
Information we collect
Periodic Table Lab has no accounts and does not collect personal information such as names or email addresses. Searches and formulas are processed in your browser and are never sent to a server.
Browser storage
Your dark-mode choice and last selected view are saved in your device's localStorage. Clearing site data in your browser removes them.
Advertising
Kakao AdFit advertisements may be shown to support the site. Ad providers may use cookies to serve and measure ads under their own policies.
Hosting logs
The site is served by Cloudflare Pages, which may temporarily process access logs (such as IP addresses) for security and operations.
Contact
Send privacy questions to the email address on the contact page.