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Nibabel

Python package to access a cacophony of neuro-imaging file formats

From nipy·Updated June 18, 2026·View on GitHub·

.. Use raw location to ensure image shows up on PyPI .. image:: https://raw.githubusercontent.com/nipy/nibabel/master/doc/pics/logo.png :target: https://nipy.org/nibabel :alt: NiBabel logo The project is written primarily in Python, distributed under the Other license, first published in 2010. Key topics include: afni-brik-head, brain-imaging, cifti-2, data-formats, dicom.

Latest release: 5.4.1
March 10, 2026View Changelog →

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:target: https://nipy.org/nibabel
:alt: NiBabel logo

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.. Following contents should be copied from LONG_DESCRIPTION in nibabel/info.py

Read and write access to common neuroimaging file formats, including:
ANALYZE_ (plain, SPM99, SPM2 and later), GIFTI_, NIfTI1_, NIfTI2_, CIFTI-2,
MINC1
, MINC2_, AFNI BRIK/HEAD, ECAT and Philips PAR/REC.
In addition, NiBabel also supports FreeSurfer_'s MGH_, geometry, annotation and
morphometry files, and provides some limited support for DICOM_.

NiBabel's API gives full or selective access to header information (metadata),
and image data is made available via NumPy arrays. For more information, see
NiBabel's documentation site_ and API reference_.

.. _API reference: https://nipy.org/nibabel/api.html
.. _AFNI BRIK/HEAD: https://afni.nimh.nih.gov/pub/dist/src/README.attributes
.. _ANALYZE: http://www.grahamwideman.com/gw/brain/analyze/formatdoc.htm
.. _CIFTI-2: https://www.nitrc.org/projects/cifti/
.. _DICOM: http://medical.nema.org/
.. _documentation site: http://nipy.org/nibabel
.. _ECAT: http://xmedcon.sourceforge.net/Docs/Ecat
.. _Freesurfer: https://surfer.nmr.mgh.harvard.edu
.. _GIFTI: https://www.nitrc.org/projects/gifti
.. _MGH: https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/MghFormat
.. _MINC1:
https://en.wikibooks.org/wiki/MINC/Reference/MINC1_File_Format_Reference
.. _MINC2:
https://en.wikibooks.org/wiki/MINC/Reference/MINC2.0_File_Format_Reference
.. _NIfTI1: http://nifti.nimh.nih.gov/nifti-1/
.. _NIfTI2: http://nifti.nimh.nih.gov/nifti-2/

Installation

To install NiBabel's current release_ with pip, run::

pip install nibabel

To install the latest development version, run::

pip install git+https://github.com/nipy/nibabel

When working on NiBabel itself, it may be useful to install in "editable" mode::

git clone https://github.com/nipy/nibabel.git
pip install -e ./nibabel

For more information on previous releases, see the release archive_ or
development changelog_.

.. _current release: https://pypi.python.org/pypi/NiBabel
.. _release archive: https://github.com/nipy/NiBabel/releases
.. _development changelog: https://nipy.org/nibabel/changelog.html

Testing

During development, we recommend using tox_ to run nibabel tests::

git clone https://github.com/nipy/nibabel.git
cd nibabel
tox

To test an installed version of nibabel, install the test dependencies
and run pytest_::

pip install nibabel[test]
pytest --pyargs nibabel

For more information, consult the developer guidelines_.

.. _tox: https://tox.wiki
.. _pytest: https://docs.pytest.org
.. _developer guidelines: https://nipy.org/nibabel/devel/devguide.html

Mailing List

Please send any questions or suggestions to the neuroimaging mailing list <https://mail.python.org/mailman/listinfo/neuroimaging>_.

License

NiBabel is licensed under the terms of the MIT license <https://github.com/nipy/nibabel/blob/master/COPYING#nibabel>__.
Some code included with NiBabel is licensed under the BSD license.
For more information, please see the COPYING
file.

.. _BSD license: https://opensource.org/licenses/BSD-3-Clause
.. _COPYING: https://github.com/nipy/nibabel/blob/master/COPYING

Citation

NiBabel releases have a Zenodo_ Digital Object Identifier_ (DOI) badge at
the top of the release notes. Click on the badge for more information.

.. _Digital Object Identifier: https://en.wikipedia.org/wiki/Digital_object_identifier
.. _zenodo: https://zenodo.org

Contributors

Showing top 12 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from nipy/nibabel via the GitHub API.Last fetched: 6/21/2026