Geneious - Geneious combines all the major DNA and protein sequence analysis tools into one revolutionary...
UGENE - UGENE is free open-source cross-platform bioinformatics software
SnapGene Viewer - SnapGene offers the fastest and easiest way to plan, visualize, and document DNA cloning and PCR. You can easily annotate features and design primers.
BioEdit - Biological sequence alignment editor
TreeView X - TreeView X is an open source program to display phylogenetic trees.
DNASTAR Lasergene - Lasergene - DNA software for life scientists