HDFView 3.4.0 is a graphic utility designed for viewing and editing the contents of HDF4 and HDF5 files. This version released in Dec 2025, based on HDF-4.3.1 and HDF5-2.0.0.
See the Release Notes for more information.

This location provides the following:

• documentation -- HDFView 3.4.0 documentation including the UsersGuide
• downloads -- Version 3.4.0 release files