About

Utileno is a collection of small, fast online tools — calculators, converters and text utilities — that run directly in your browser.

There is nothing to install and no account to create. Open a tool, type your input, and you get the answer immediately.

Privacy first

The tools on this site process your input locally in your browser. What you type into a calculator or paste into a text tool is not sent to our servers. See the Privacy page for details on analytics and advertising.

Why these tools

We build tools around real, everyday questions: what is a percentage of a number, how many days until a date, how many words are in a text. Each tool focuses on answering one question well instead of hiding many features behind menus.

Feedback

Missing a tool you need, or found a bug? We read every message — see the Contact page.