.LAZ

LASzip Compressed LiDAR Data

Learn about .laz files - LASzip Compressed LiDAR Data. Find software to open, compatibility information, and alternatives.

Data 20 Searches File Extension Details
.LAZ
LASzip Compressed LiDAR Data

What is a .laz file?

File Extension Details

The LAZ file format is a highly efficient, lossless compressed version of the industry-standard LAS format used for storing LiDAR (Light Detection and Ranging) point cloud data. Developed to address the massive file sizes generated by modern high-density laser scanning, LAZ files utilize the LASzip algorithm to reduce storage requirements by an average of 70 to 90 percent without sacrificing any precision or metadata. This makes it the preferred format for archiving and transferring large-scale geospatial datasets, such as aerial surveys, topographic mapping, and 3D city modeling. Because the compression is lossless, the data can be decompressed back into the original LAS format bit-for-bit, ensuring that critical spatial coordinates, intensity values, return numbers, and classification tags remain intact for scientific analysis and engineering applications.

Software Compatibility

Programs that can open and work with .laz files

Windows

Compatible Applications

Global Mapper Compatible
ArcGIS Pro Compatible
CloudCompare Compatible
LAStools Compatible
QGIS Compatible

macOS

Compatible Applications

CloudCompare Compatible
QGIS Compatible
WhiteboxTools Compatible

Linux

Compatible Applications

CloudCompare Compatible
QGIS Compatible
PDAL Compatible
LAStools Compatible

Mobile

Mobile Applications

LiDAR Viewer Compatible
Point Cloud Viewer Compatible

Frequently Asked Questions

About .laz files

To open a .laz file, you need compatible software. Here are some options:

  • Global Mapper
  • ArcGIS Pro
  • CloudCompare
  • LiDAR Viewer

To convert a .laz file to another format, you can:

  1. Use compatible software Many programs that open .laz files also allow you to save or export them to different formats.
  2. Try online conversion services: Websites like Zamzar, CloudConvert, or Online-Convert allow you to convert files between different formats without installing software.
  3. Specialized conversion tools: Search for '.laz converter' to find tools specifically designed for this file type.

  1. Verify the file extension is correct:
  2. Update your software:
  3. Try alternative software:
  4. Check for file corruption:

Like any file type, .laz files can be safe or potentially risky depending on their source:

  • Always scan files with antivirus software before opening
  • Keep your operating system and applications updated.
  • Be especially cautious with executable file types

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