Privacy Policy
Short version: we collect almost nothing.
Data you provide
Calculator inputs are processed entirely in your browser. They are never sent to a server. When you close the tab, your inputs are gone (unless you've shared a URL containing them — see below).
Local storage
We use your browser's localStorage to remember two preferences across visits:
- Theme choice (light / dark).
- Display currency (USD, EUR, GBP, CNY, JPY, INR).
You can clear these at any time from your browser settings.
Shareable URLs
Each calculator can encode its current inputs into a URL fragment (the part after #). Fragments are not sent to any server. If you share such a URL with someone else, they will see the inputs you encoded.
Analytics
We use Cloudflare Web Analytics, a privacy-first, cookie-free analytics product. It records anonymous page-view counts. No personal data, no IP addresses, no fingerprinting.
Cookies
We do not set any cookies.
Changes
If we change anything material, we'll update this page and bump the date below.
Last updated: 2026.