Welcome to Tract Plotter!

Smartphone Version Now Available! Optimized for iPhone and Android - See Development Blog for more info.

For now we have a very simple tract plotter for free use from any computer with a web browser. It works with straight lines only. Calls must be made in the example forms given below, with periods separating degrees, minutes, and seconds; only degrees are required. Each call must be on its own line. Closure will appear as a red line. If your tract isn't plotting correctly, please click here to read the help text.

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We will be releasing a more fully-featured version of Tract Plotter at some point in the future. To sign up to be notified by e-mail when the new version is available, please input your e-mail address here. Your e-mail address will never be sold or used for spam.

Disclaimer: TractPlotter.com is a work in progress, is provided as a free service and makes no warranty as to the accuracy of its results.