BioEdit - Biological sequence alignment editor
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.
DNADynamo - DNA analysis, cloning and sequencing software
UGENE - UGENE is free open-source cross-platform bioinformatics software
4peaks - 4Peaks - For Peaks, Four Peaks.
Chromas - Two software applications are available from Technelysium: Chromas and ChromasPro.