Small, useful tools and notes.
Calculators, converters and generators that run entirely in your browser.
Everyday
- Percentage Calculator Percent of a number, percent change, and more.
- Aspect Ratio Calculator Scale a width and height while keeping the same ratio.
- QR Code Generator Links, text, WiFi and contacts. Download as PNG or SVG.
Money
- ¿Cuánto me cuesta un empleado? (México) Costo total para la empresa, sueldo neto, IMSS, ISR y calendario de prestaciones.
- IVA Calculator Add or remove Mexican IVA (16% or 8%).
- Compound Interest Calculator Growth over time with regular contributions.