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@HDFGroup

The HDF Group

Tools and technologies to support the Hierarchical Data Format (HDF)
README.md

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. hdf5 hdf5 Public

    Official HDF5® Library Repository

    C 891 333

  2. hsds hsds Public

    Cloud-native, service based access to HDF data

    Python 153 59

  3. hdfview hdfview Public

    Java 126 24

  4. hdf4 hdf4 Public

    Official HDF4 Library Repository

    C 18 24

  5. hdf5_plugins hdf5_plugins Public

    CMake 19 23

  6. vol-toolkit vol-toolkit Public

    A toolkit for VOL connector authors

    2

Repositories

Showing 10 of 82 repositories
  • hdf5 Public

    Official HDF5® Library Repository

    HDFGroup/hdf5’s past year of commit activity
    C 891 333 291 19 Updated Feb 17, 2026
  • h5pyd Public

    h5py distributed - Python client library for HDF Rest API

    HDFGroup/h5pyd’s past year of commit activity
    Python 124 43 24 9 Updated Feb 16, 2026
  • hsds Public

    Cloud-native, service based access to HDF data

    HDFGroup/hsds’s past year of commit activity
    Python 153 Apache-2.0 59 35 1 Updated Feb 13, 2026
  • 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 1 2 0 Updated Feb 12, 2026
  • hdf4 Public

    Official HDF4 Library Repository

    HDFGroup/hdf4’s past year of commit activity
    C 18 24 13 0 Updated Feb 10, 2026
  • vol-rest Public

    HDF5 REST VOL Connector

    HDFGroup/vol-rest’s past year of commit activity
    C 6 8 8 0 Updated Feb 10, 2026
  • vol-async Public

    Asynchronous I/O for HDF5

    HDFGroup/vol-async’s past year of commit activity
    C 24 14 5 0 Updated Feb 10, 2026
  • vol-cache Public

    HDF5 Cache VOL connector for caching data on fast storage layers and moving data asynchronously to the parallel file system to hide I/O overhead.

    HDFGroup/vol-cache’s past year of commit activity
    C 21 BSD-3-Clause 9 7 0 Updated Feb 10, 2026
  • hdf5_plugins Public
    HDFGroup/hdf5_plugins’s past year of commit activity
    CMake 19 23 5 1 Updated Feb 9, 2026
  • hdf5-json Public

    Specification and tools for representing HDF5 in JSON

    HDFGroup/hdf5-json’s past year of commit activity
    Python 83 25 10 (1 issue needs help) 4 Updated Feb 6, 2026
View all repositories

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