Log Paper is a free and portable application to create and print paper for diagram drawing.

The neat thing about Log Paper is the number of customizing option that can almost be overwhelming at first glance. But, if you need a diagram that you can't easily buy in the store, Log Paper is your answer.

By default, the auto preview is on so for the first use we'd suggest checking and changing a few settings to get used to what you can, or want, to do.

Starting from the top, you can enter a page header. Next, you can choose the Horizontal and Vertical axis and select the distance for lines 1, 2, and 3.

Once you've got your diagram just the way you want, there are additional options you can choose from. You can use extra thin lines, set up your printer, select paper size, and even add a margin to all four sides. Finally, you can use centimeters or inches.

Log Paper fills a neat little niche we never even considered before. If we ever needed to create a custom diagram, we'd look up this freeware app.