LSDTopoTools. This software was developed by members of the Land Surface Dynamics (LSD) research group at the University of Edinburgh.The software aims to operate: As a framework for implementing the latest developments in topographic analysis. As a framework for developing new topographic analysis techniques. As a framework for numerical modelling of landscapes. To improve the speed and performance of topographic analysis versus other tools (e.g., commercial GIS software). To enable reproducible topographic analysis in the research context. This software is constantly used for research and is regularly updated with new routines. Some popular techniques already implemented include: Basic topographic analysis; Channel network extraction from LiDAR data; Chi analysis; Calculation of erosion rates from cosmogenic nuclides; Hilltop flow routing, and hillslope relief metrics; Topographic extraction of floodplains and terraces