protractor


An online web app measures the angle and the slope of any object.

Inch Ruler


It is an online application, support cm, inch and pixel.

Online Ruler (cm/mm)


It is an online application, support cm, inch and pixel.

countdown timer


Online web application without any installation.

stopwatch


stopwatch status which can be saved and shared

Ruler


It is an online application, support cm, inch and pixel.