HDFView is a Java-based application to view, create, and modify HDF5 files in a tabular format. HDFView can also make 1-D (line) plots and 2-D (raster) plots of the data in an HDF5 file. For example data see Neon.
To view a plot of data, right click on the dataset name and select “Open As” and then set the parameters to view the data. It’s important to use a recent version of HDFView, as a long-time issue especially with Linux distributions is having old, broken versions of HDFView. A typical problem with old HDFView versions is that HDFView won’t start.