The LAS and LAZ file format

Compiled by Paul Bourke
December 2019


The LAS format is intended as an interchange format for laser scanner point cloud data. It is maintained by the American Society for Photogrammetry and Remote Sensing and at the time of writing is at version 1.4. The format is binary, for efficiency, and the LAZ variant is a losslessly compressed version.

The format is open source and fully documented. An API for programmers as well as a number of useful tools for managing and extracting data from LAS and LAZ files can be found in the "LAStools".