NOTE: This tool requires Java Version 8. Download it here: Java Runtime Environment.

DNA Skew Graphing

DNA Skew Graphing (GraphDNA) allows the user to generate graphical representations of raw DNA sequences. To date, there are 8 graphing options and the user can plot any of the individual genes or genomes in any format.

Getting started

If you’re new to GraphDNA, click on the launch button (on the right) and use the Quick Start Page to learn the basics (or if you’re like us…  just start clicking!).

The VBRC also provides additional help resources for GraphDNA:


Thomas, J.M., Horspool, D., Brown, G., Tcherepanov, V., and Upton, C. 2007. 
GraphDNA: a Java program for graphical display of DNA composition analyses. BMC Bioinformatics. 8:21.


If your system does not launch Viral Orthologous Clusters, it is probably missing Java Runtime Environment 1.8. Please see Java Web Start Setup and Java Web Start Tips for help.

Submit a feature request

Is there a feature that you think this tool needs? Submit a wish.