Privacy

Short answer: we collect almost nothing. The math runs in your browser. We do not know who you are.

What we collect

We use Vercel Analytics, a privacy-friendly product that counts page views without cookies and without tracking individuals across the web. We see anonymous, aggregated counts of which pages were visited, from which countries, on which devices.

We use Vercel Speed Insights, which collects anonymous Core Web Vitals (load time, interactivity) so we can fix slow pages.

That is it. No marketing pixels, no Facebook script, no Google Analytics, no ad-tech.

What never leaves your browser

• The numbers you type into any calculator or converter
• The list you paste into the random picker
• The text you encode in a barcode or QR code
• Any settings you adjust within a tool

These are computed on your device. We do not transmit, store, or have access to them.

Cookies

We do not set cookies on numerly.io.

Third parties

Numerly is hosted on Vercel, served via Vercel's global CDN. Vercel sees standard server logs (IP, user-agent, requested URL) which they retain in line with their privacy policy. Embeds rendered on third-party websites use a standard iframe; the embedding site sees the same anonymous Vercel traffic, nothing more.

Your rights

Because we do not store personal data, there is nothing to access, correct, or delete. If you have any concerns, email hi@numerly.io.

Changes

If this policy changes we will update the date at the top and call out material changes on the homepage for at least seven days.