- O - An interactive system for building and manipulating models in electron density maps
- O-data - Data files for O
- O-job - Job files for O
- arp_warp - Automated protein model building for crystallography
- procheck - Checks the stereochemical quality of a protein structure, producing a number of PostScript plots analysing its overall and residue-by-residue geometry.
- solve - Automated crystallographic structure solution for MIR, SAD, and MAD