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The HDF Group

Welcome to The HDF Group!

We're so glad you're here. You've come to the right place to get started with the HDF community.

Get Help When You Need It

We have a ton of resources to help you get the most out of HDF products.

  • Documentation: Explore our comprehensive documentation to find exactly what you need.
  • Community Forum: Have a question? Our forum is the perfect place to search for answers or ask the community for help.
  • Call the Doctor: Join our weekly sessions to get your questions answered directly by The HDF Group staff.
  • Help Desk: For specific issues, submit a ticket to our free community Help Desk.
  • Priority Support: For dedicated assistance, consider a service contract. Your support helps us continue our non-profit mission.

Join the Conversation!

We're an open-source community, and we thrive on your contributions.

  • Contribute: Found a bug or have an idea for a new feature? Raise an issue or write a pull request on any of our repos!

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  1. Official HDF5® Library Repository

    C 927 339

  2. Cloud-native, service based access to HDF data

    Python 155 59

  4. Official HDF4 Library Repository

    C 19 25

  6. A toolkit for VOL connector authors

    2

Repositories

Showing 10 of 83 repositories

  • hdf5 Public

    Official HDF5® Library Repository

    HDFGroup/hdf5’s past year of commit activity

  • hdf5-pickles Public

    A machine-readable specification of the HDF5 file format

    HDFGroup/hdf5-pickles’s past year of commit activity

    Dockerfile 0 GPL-3.0

    2 0 1

    Updated Apr 10, 2026

  • h5pyd Public

    h5py distributed - Python client library for HDF Rest API

    HDFGroup/h5pyd’s past year of commit activity

  • hdf5-json Public

    Specification and tools for representing HDF5 in JSON

    HDFGroup/hdf5-json’s past year of commit activity

  • hdf4 Public

    Official HDF4 Library Repository

    HDFGroup/hdf4’s past year of commit activity

  • hdf5-ssp-sig Public

    HDF5 Safety, Security & Privacy (SSP) Special Interest Group's governance, processes, and artifacts

    HDFGroup/hdf5-ssp-sig’s past year of commit activity

    Python

    1 4 2 0

    Updated Apr 2, 2026

  • cve_hdf5 Public

    For testing CVE issues filed against the HDF5 library

    HDFGroup/cve_hdf5’s past year of commit activity

    Shell

    3 4 1 0

    Updated Mar 26, 2026

  • hsds Public

    Cloud-native, service based access to HDF data

    HDFGroup/hsds’s past year of commit activity

    Python

    155

    Apache-2.0

    59 35 1

    Updated Mar 25, 2026

  • HDFGroup/hdfview’s past year of commit activity

  • HDFGroup/vol-rest’s past year of commit activity

    C

    6 8 8 0

    Updated Mar 17, 2026