Simple JS implementation of Objective Digital Stain (ODS) produces ODS images from DNA sequences. On ODSs, the information content (IC) is represented vertically on the y-axis and the frequency of different letters is represented horizontally on the x-axis.

Sequence Logo - relative style is an alternative that provides full control over how the graphics of a Sequence Logo should look like, and is an alternative to an application called WebLogo. All the inner workings of this open source application are written in native javascript.

This is an application that shows the informational structure of DNA sequences. The objective digital stain (ODS) is represented by a distribution of points on a two-dimensional image, which reflects the information structure inside a DNA/RNA sequence.