Open H5 files online

HDF5 stores large, complex hierarchical datasets used in science and engineering.

Guide only — This browser cannot render the format yet; the page lists compatible software and libraries.

Guide only

This browser cannot render the format yet; the page lists compatible software and libraries.

Besides this free online viewer, you can open HDF5 files in desktop apps such as HDFView, Python h5py, MATLAB — but here all you need is a web browser.

Sample files for HDF5

This browser cannot render the format yet; the page lists compatible software and libraries.

What is a H5 file?

HDF5 stores large, complex hierarchical datasets used in science and engineering. The .H5 extension identifies a Hierarchical Data Format 5 file, which is served with the application/x-hdf5 media type.

Besides this free online viewer, you can open HDF5 files in desktop apps such as HDFView, Python h5py, MATLAB — but here all you need is a web browser.

Quick facts

FormatHDF5 — Hierarchical Data Format 5
File extensions.h5 .hdf5
MIME typeapplication/x-hdf5
DeveloperThe HDF Group
CategoryData & analytics
Also opens inHDFView, Python h5py, MATLAB

100% private — files never leave your browser.

Software and libraries that can open a H5 file

This browser cannot render the format yet; the page lists compatible software and libraries.

Frequently asked questions

What is a .H5 file?

This browser cannot render the format yet; the page lists compatible software and libraries.

What programs open H5 files?

On the desktop, H5 files typically open in HDFView, Python h5py, MATLAB. Online, this page opens them in any modern browser — nothing to download.