CHOPCHOP
CRISPR guide RNA design with off-target scoring.
Server
CHOPCHOP
University of Bergen · chopchop.cbu.uib.no
- Does
- CRISPR guide RNA design with off-target scoring.
- Access
- Free
Use this when
Guide design for a sequenced model organism. For a custom or unannotated genome, run CRISPOR or a local pipeline instead.
External tool. We link, we don’t host — nothing you enter on Biology 101 reaches them.
About this tool
Designs guides for Cas9, Cas12a, base editing and knock-in across a wide set of genomes, with efficiency and off-target ranking.
Science last reviewed .