COLMAP is a photogrammetry software that facilitates 3D reconstruction from images and videos. It is primarily used for Structure-from-Motion (SfM) and Multi-View Stereo (MVS) tasks. COLMAP provides an efficient, fully automatic pipeline that allows users to create detailed 3D models by analyzing and processing overlapping photographs. It supports a wide range of input formats and offers a graphical user interface alongside command-line functionality, making it accessible to both beginners and advanced users. The software is open-source and extensively used in academic research for computer vision and related fields.