The HDFView is a Java-based tool for browsing and editing NCSA HDF4 and HDF5 files. HDFView allows users to browse through any HDF4 and HDF5 file; starting with a tree view of all top-level objects in an HDF file's hierarchy. HDFView allows a user to descend through the hierarchy and navigate among the file's data objects. The content of a data object is loaded only when the object is selected, providing interactive and efficient access to HDF4 and HDF5 files. HDFView editing features allow a user to create, delete, and modify the value of HDF objects and attributes.

Using HDFView, you can:

view a file hierarchy in a tree structure
create new file, add or delete groups and datasets
view and modify the content of a dataset
add, delete and modify attributes
replace I/O and GUI components such as table view, image view and metadata view