Short version: the tools run in your browser, and I don't collect or store what you type into them.
Every calculation and conversion happens locally in your browser. The numbers, text and dates you enter aren't sent to me or saved on a server. A few tools call a public data source to work (for example, live exchange rates for the currency converter, or a QR image service) — those requests contain only what's needed to return a result, not your identity.
I use privacy-respecting analytics to see roughly how many people visit and which tools get used, so I know what to improve. This is aggregate traffic data — it doesn't identify you.
Some pages may show ads from Google AdSense to help cover hosting. Google and its partners may use cookies to serve and measure ads. You can review and control this at Google Ad Settings, and manage cookies in your browser.
A few tools link out to products or services. Some of those are affiliate links, meaning I may earn a small commission if you buy — at no extra cost to you. It never changes the result a tool gives you.
You can use a browser or extension that blocks ads and analytics, and everything here will still work. Questions about privacy? Reach out via the About page.