About ConvertAny.app
About ConvertAny.app: why this site exists, who built it, and how to get in touch.
ConvertAny.app is a free collection of fast, simple unit converters — built to do one thing well: give you the right answer in seconds, without sign-ups, without clutter, and without your data leaving your browser.
Why this site exists
Unit conversions pop up everywhere: a US recipe calling for cups while your kitchen scale works in grams, a real-estate listing in square meters for buyers who think in square feet, a fuel economy figure in MPG that you want in liters per 100 km. Most conversion tools are buried in ads, force you to create an account, or send your inputs to a server. ConvertAny.app was built to be the opposite: every converter runs entirely in your browser. No server calls, no tracking, no account — just type and get the answer.
Who built it
ConvertAny.app was created and is maintained by Aren Breur, an independent developer from the Netherlands. The site is part of a small network of free, focused tools — no big company behind it, no data harvesting, just useful software that respects its users.
How it works
All converters use straightforward, well-known formulas (and static reference rates for currencies, updated daily). Because everything runs client-side, the site is fast, works offline after loading, and never sees your inputs.
Feedback
Found a bug or want a new converter? See the Contact page — suggestions are always welcome.