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HDF5 Viewer — Browse .h5 / .hdf5 Files Online

A free browser-based HDF5 viewer. Drop a .h5 file to explore its group tree, dataset shapes, dtypes, and attributes — and decode 3D data cubes interactively. Your file stays on your device.

Open the HDF5 viewer
  • Full group/dataset tree with shapes, dtypes, and attributes
  • Reads via the official HDF5 C library compiled to WebAssembly
  • Large local files stream from disk — a 1.8 GB EMIT scene opens fine
  • Export any band to GeoTIFF or sample pixel spectra to CSV

HDF5 is the container behind NetCDF4, EMIT, and countless scientific datasets. This viewer gives you the "h5ls with a UI" experience anywhere: identify dataset paths, check dimensions and fill values, and eyeball the data before writing a processing pipeline.

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