About

What is Good Patrone?

What is this?

Good Patrone is a free collection of everyday online tools — built to be fast, simple, and distraction-free. No signup required, no unnecessary data collected, no bloat. Just open the tool and use it.

Available tools

Days BetweenCount days, weeks, months and hours between any two dates

StopwatchPrecise stopwatch with mark tracking and reference timestamps

Countdown TimerCountdown with presets, custom time, and sound alerts

BMI CalculatorCalculate Body Mass Index with ideal weight — metric & imperial

Currency ConverterLive EUR, USD, GBP, JPY and CHF exchange rates via Frankfurter API

Water Usage CalculatorEstimate daily water consumption and monthly bill by fixture

Electricity Bill EstimatorCalculate monthly electricity cost by appliance with solar savings tip

Why we built it

Most online tools require accounts or demand permissions they don't need. Good Patrone exists to offer a cleaner alternative — lightweight tools that work instantly in your browser, with no strings attached.