Legal
Cookie Policy
Last updated: June 16, 2026
Cookies and similar technologies (such as localStorage) are small pieces of data stored in your browser. We use a minimal set to operate the Service, measure aggregate usage, and — where enabled — serve advertising. This policy describes each category.
| Cookie / store | Type | Purpose | Duration |
|---|---|---|---|
| Theme & preferences | Essential (localStorage) | Remember dark/light mode, favorite converters and recently used units. | Until cleared |
| Analytics | Analytics | Aggregate, anonymized usage metrics to understand which tools and content are useful. | Up to 13 months |
| Ad personalization | Advertising (where enabled) | Used by Google AdSense and similar partners to serve and measure relevant ads. | Up to 13 months |
| Security | Essential | Detect abuse, rate-limit abusive traffic, and protect the Service. | Session / short term |
Managing cookies
All modern browsers let you view, delete and block cookies. See instructions for Chrome, Firefox, Safari or Edge.
To opt out of personalized advertising specifically, visit Google Ad Settings and YourAdChoices.
See also our Privacy Policy.