SnapGene Viewer is revolutionary software that allows molecular biologists to create, browse, and share richly annotated DNA sequence files up to 1 Gb in length. It is a great tool for both research and teaching. Here are some of the things you can do with this software. Create a DNA sequence file by either entering a sequence, or importing a record from GenBank, or opening an annotated sequence stored in one of many common file formats. Browse or print a DNA sequence and its annotations using customizable Map, Sequence, Enzymes, Features, Primers, and History views. Search a DNA sequence to match either a DNA query, or a protein translation, or an annotation. Open and edit sequence trace files. Automatically annotate common features, or manually annotate coding sequences and other features. Design and annotate primers for PCR, sequencing, or mutagenesis. Identify open reading frames (ORFs) with a single mouse click. Export a plasmid map as an image, or export an annotated DNA sequence to GenBank format. Freely share data with your colleagues or customers using the universally accessible SnapGene format.