bookmark CrispRVariants Resolves and localizes individual mutant alleles with respect to the endonuclease cut site. CrispRVariants quantifies and visualizes individual variant alleles from either traditional Sanger sequencing or high-throughput CRISPR-Cas9 mutagenesis sequencing experiments. CrispRVariants was designed with interactivity in mind, explicitly allowing users to detect problems and filter sequences appropriately before estimating mutation efficiency. This toolkit can be easily used to create a variant allele summary plot and accompanying table of counts. CrispRVariants enables immediate comparison of variant spectra between target locations.