Colour Test

Foreground text and a background colour, see how they work together with this little utility:

Click to launch the Colour Test

Subnet Calculator

If you create complex networks then you will know how tricky it is to calculate your subnet ranges, this calculator makes the job easy and has a useful list of main IP4 subnets:

Click to launch the Subnet Calculator

Match Wheel

Which colour goes with what, how can I enhance a room with complementaries? You need a colour wheel, there is one here:

Click to launch the Colour Wheel

Monitor Calibration

If your display is too glary and your eyes are going bleary it may be time to tone down that bright light and make your monitor more eye friendly with this calibration sheet:

Click to launch The Monitor Calibration Sheet

Electronics Calculations

Need to find a resistor or your LED, work out the power used or simply curious about Ohms, Amps and Volts here is an Electronics calculator:

Click to launch the Electronics Calculator

Circle Calculations

If you have forgotten PI and need the area of a circle, never fear a simple calculator is near:

Click to launch the Circle Calculations

Conversion Calculator

When you are in the kitchen, or need a quick conversion from metric to imperial, Centigrade to Fahrenheit here is a nifty converter for you:

Click to launch the Conversion Calculator