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. 2020 Sep 9;3(11):e202000757. doi: 10.26508/lsa.202000757

Table 2.

Feature comparison of gRNA design tools.

multicrispr CHOPCHOP CRISPOR CCTop CRISPRseek FlashFry
R Py Py Py R Scala
(1) Install
 One-liner
(2) Define targets
 Target range(s)
 Target gene(s)
 Target sequence(s)
(3) Transform targets
 Genome arithmetic
(4) Find spacers
 Spacer sequences
 Spacer ranges
 Prime editing sequences
 Prime editing ranges
(5) Count off-targets
 Genome (mis)match algorithm Aho+ Bowtie Bowtie Bowtie Aho FlashFry
Bowtie
 Genome (mis)match aggregation
 Target cross-(mis)match subtraction
(6) Score on-targets
 Doench2016
 Doench2014
 Labuhn 2017 (Labuhn et al, 2017)