About EveryToolAI

EveryToolAI is a collection of free, fast online tools — calculators, converters and generators — that run entirely in your web browser. There are no accounts, no paywalls, and no upload step: the maths and file handling happen on your device, so your data never leaves it.

Why we built it

Most free tool sites make you upload your files to a server, wrap the result in interstitial ads, or gate the download behind a subscription. We wanted the opposite: a clean, honest tool that does one job well, proves its privacy claim (turn off your Wi-Fi and most tools still work), and loads fast on any device.

Accuracy

Every tool's logic is written as a pure function and covered by automated tests, using exact, internationally defined constants where they exist (for example, one inch is exactly 25.4 mm). Financial and health tools are estimates for planning and are not professional advice.

Who's behind it

EveryToolAI is built and maintained by a small two-person team. Have a tool request or found a bug? See the contact page.