Download lDDT executables

Please choose the lDDT executable for your platform below:

Get lDDT source code

lDDT is developed within the OpenStructure framework. In order to access the OpenStructure/lDDT source code please follow the instructions at this link.
An online version of lDDT executable documentation can be found here.

If you use local distance difference test (lDDT), please cite the following reference:
  • Mariani V., Biasini M., Barbato A., and Schwede T. (2013). lDDT: A local superposition-free score for comparing protein structures and models using distance difference tests. Bioinformatics. Bioinformatics 29 (21), 2722-2728. [PDF]