BioEdit, Serial Cloner, Vector NTI, 4peaks, Benchling, DNADynamo, PDRAW32, CLC Main Workbench, CLC Genomics Workbench, MacVector, Genome Compiler, PlasmaDNA, VectorFriends, Open Vector Editor Electron, DrugPatentWatch, GeneStudio, XPlasMap, Ridom TraceEdi, Gene Construction Kit, BVTech Plasmid, DNAssist, SimVector, DNApy are some alternatives to SnapGene Viewer.