Our open-source tool lasvalidate performs the important task of checking whether LAS/LAZ files contain valid data and comply with specifications. LAS 1.5, released by ASPRS in August 2025, introduced several changes to the format. Therefore, lasvalidate was redesigned and reimplemented to meet these new requirements. The revised lasvalidate64 was released with the latest version (260326). It analyzes header information, structural metadata, CRS definitions, and selected point attributes, and generates a structured validation report.
New features:
- check against the LAS 1.5 specification
- check of GeoTIFF and WKT georeferencing VLRs
- check of the compatibility of all LAS versions and point formats
In addition to an XML report, the following output options are available:
- direct report to the console
- report in JSON format
- report as text output
- report as a CVS table for multiple input files
Further details can be found in the file lasvalidate_README.md in the installation package or in our online documentation.