View alignment files fast and easy. Laj help you view and manipulate the output from pairwise alignment programs such as blastz.
It can display interactive dotplot, pip, and text representations of the alignments, a diagram showing the locations of exons and repeats, and annotation links to other web sites containing additional information about particular regions.

Requirements:
* Java

The license of this software is Freeware, you can free download and free use this calculator software.