This repository contains a high-performance library's source code and a file format specification that implements the HDF5® data model. The model has been adopted across many industries, and this implementation has become a de facto data management standard in science, engineering, and research communities worldwide.
The HDF Group is the developer, maintainer, and steward of HDF5 software. Find more information about The HDF Group, the HDF5 Community, and other HDF5 software projects, tools, and services at The HDF Group's website.
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New to HDF5? Start with the INSTALL guide for compilation and installation instructions.
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Ready to build? See INSTALL_CMake.txt for CMake-based builds.
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Running on HPC? Check out README_HPC.md for parallel HDF5 configuration.
- What is HDF5?
- Quick Start
- Documentation
- Help and Support
- Forum and News
- Release Schedule
- Downloads and Source Code
- Java Maven Artifacts
- Contributing
- How to Cite HDF5
- Build Status
Documentation for all HDF software is available at:
- All HDF Documentation: https://support.hdfgroup.org/documentation/index.html
- Latest HDF5 Library: https://support.hdfgroup.org/documentation/hdf5/latest
See the CHANGELOG.md file in the release_docs/ directory for information specific to the features and updates included in this release of the library.
Several files in the release_docs/ directory provide platform-specific details:
| File | Description |
|---|---|
| INSTALL | General compilation and installation instructions (start here) |
| INSTALL_CMake.txt | Building with CMake |
| README_HPC.md | Building and configuring Parallel HDF5 on HPC systems |
| INSTALL_Windows.txt | Windows installation |
| INSTALL_Cygwin.txt | Cygwin installation |
| USING_HDF5_CMake.txt | Building HDF5 applications with CMake |
| USING_CMake_Examples.txt | Building and testing HDF5 examples with CMake |
The HDF Group staffs a free Help Desk accessible at https://help.hdfgroup.org and also monitors the Forum. Our free support service is community-based and handled as time allows. We'll do our best to respond to your question as soon as possible, but please note that response times may vary depending on the complexity of the issue and staff availability.
If you're interested in guaranteed response and resolution times, a dedicated technical account manager, and more benefits (all while supporting the open-source work of The HDF Group), please check out Priority Support.
The HDF Forum is provided for public announcements, technical questions, and discussions of interest to the general HDF5 Community.
These forums are provided as an open and public service for searching and reading. Posting requires completing a simple registration and allows one to join in the conversation. Please read the quickstart guide for more information on how to get started.
HDF5 does not follow a regular release schedule. Instead, updates are based on the introduction of new features and the resolution of bugs. However, we aim to have at least one annual release for each maintenance branch.
The badges above show the current progress of release-blocking and must-do issues with colors that reflect completion status:
- 🟢 Green (90%+): Readying for Deployment - most issues completed
- 🟡 Yellow (60-89%): Nearing Completion - on track for release
- 🟠 Orange (40-59%): In Development - attention needed
- 🔴 Red (<40%): Initial Phase - significant issues remain
Click the badges to view the detailed project board with current release items.
- Development Snapshots: https://github.com/HDFGroup/hdf5/releases/tag/snapshot
- Latest Release: https://github.com/HDFGroup/hdf5/releases
- Previous Releases: https://support.hdfgroup.org/archive/support/ftp/HDF5/releases/index.html
- Development Code: https://github.com/HDFGroup/hdf5.git
View HPC configure/build/test results on CDash
HDF5 Java bindings and examples are available as Maven artifacts. For detailed usage instructions including dependency configuration, repository setup, and platform-specific builds, see HDF5Examples/JAVA/README-MAVEN.md.
We welcome contributions to HDF5! Whether you're fixing bugs, adding features, or improving documentation, your help is appreciated.
- Report Issues: Use our GitHub Issues to report bugs or request features
- Submit Pull Requests: Fork the repository, make your changes, and submit a PR
- Join Discussions: Participate in the HDF Forum
For detailed contribution guidelines, please contact us through the Help Desk.
If you use HDF5 in your research, please cite it. This repository includes a CITATION.cff file containing standard citation metadata.
Quick DOI: 10.5281/zenodo.17808614
Click to expand detailed build status
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